best middle grade books of the 21st century

1.
The Lightning Thief (Percy Jackson and the Olympians, #1)
The Lightning Thief (Percy Jackson and the Olympians, #1) 4.31 avg rating — 3,336,578 ratings
2.
The Lost Hero (The Heroes of Olympus, #1)
The Lost Hero (The Heroes of Olympus, #1) 4.29 avg rating — 919,864 ratings
3.
Harry Potter Series Box Set (Harry Potter, #1-7)
Harry Potter Series Box Set (Harry Potter, #1-7) 4.73 avg rating — 299,540 ratings
4.
The Son of Neptune (The Heroes of Olympus, #2)
The Son of Neptune (The Heroes of Olympus, #2) 4.41 avg rating — 651,170 ratings
5.
The Last Olympian (Percy Jackson and the Olympians, #5)
The Last Olympian (Percy Jackson and the Olympians, #5) 4.55 avg rating — 1,114,964 ratings
6.
The Battle of the Labyrinth (Percy Jackson and the Olympians, #4)
The Battle of the Labyrinth (Percy Jackson and the Olympians, #4) 4.42 avg rating — 1,187,302 ratings
7.
The Mark of Athena (The Heroes of Olympus, #3)
The Mark of Athena (The Heroes of Olympus, #3) 4.47 avg rating — 658,716 ratings
8.
The Sea of Monsters (Percy Jackson and the Olympians, #2)
The Sea of Monsters (Percy Jackson and the Olympians, #2) 4.24 avg rating — 1,318,348 ratings
9.
The Titan’s Curse (Percy Jackson and the Olympians, #3)
The Titan’s Curse (Percy Jackson and the Olympians, #3) 4.37 avg rating — 1,179,028 ratings
10.
The Red Pyramid (The Kane Chronicles, #1)
The Red Pyramid (The Kane Chronicles, #1) 4.10 avg rating — 419,288 ratings
11.
Harry Potter and the Deathly Hallows (Harry Potter, #7)
Harry Potter and the Deathly Hallows (Harry Potter, #7) 4.62 avg rating — 4,009,371 ratings
12.
Harry Potter and the Goblet of Fire (Harry Potter, #4)
Harry Potter and the Goblet of Fire (Harry Potter, #4) 4.57 avg rating — 4,069,398 ratings
13.
Harry Potter and the Half-Blood Prince (Harry Potter, #6)
Harry Potter and the Half-Blood Prince (Harry Potter, #6) 4.58 avg rating — 3,563,325 ratings
14.
The Throne of Fire (The Kane Chronicles, #2)
The Throne of Fire (The Kane Chronicles, #2) 4.19 avg rating — 224,115 ratings
15.
Harry Potter and the Order of the Phoenix (Harry Potter, #5)
Harry Potter and the Order of the Phoenix (Harry Potter, #5) 4.50 avg rating — 3,690,984 ratings
16.
The Serpent's Shadow (The Kane Chronicles, #3)
The Serpent's Shadow (The Kane Chronicles, #3) 4.28 avg rating — 177,087 ratings
17.
The Ruins of Gorlan (Ranger's Apprentice, #1)
The Ruins of Gorlan (Ranger's Apprentice, #1) 4.26 avg rating — 171,541 ratings
18.
Percy Jackson and the Olympians Boxed Set (Percy Jackson and the Olympians, #1-5)
Percy Jackson and the Olympians Boxed Set (Percy Jackson and the Olympians, #1-5) 4.61 avg rating — 37,624 ratings
19.
The Bad Beginning (A Series of Unfortunate Events, #1)
The Bad Beginning (A Series of Unfortunate Events, #1) 4.02 avg rating — 559,221 ratings
20.
The False Prince (Ascendance, #1)
The False Prince (Ascendance, #1) 4.24 avg rating — 106,506 ratings
21.
A World Without Heroes (Beyonders, #1)
A World Without Heroes (Beyonders, #1) 4.13 avg rating — 42,580 ratings
22.
Wonder (Wonder, #1)
Wonder (Wonder, #1) 4.36 avg rating — 1,169,875 ratings
23.
The Inkheart Trilogy
The Inkheart Trilogy 4.22 avg rating — 19,645 ratings
24.
The Sword of Summer (Magnus Chase and the Gods of Asgard, #1)
The Sword of Summer (Magnus Chase and the Gods of Asgard, #1) 4.23 avg rating — 234,714 ratings
25.
Chronicles of Myriad: Quest for the Oracle
Chronicles of Myriad: Quest for the Oracle 3.89 avg rating — 35 ratings
26.
Artemis Fowl Boxed Set, Bks 1-5 (Artemis Fowl, #1-5)
Artemis Fowl Boxed Set, Bks 1-5 (Artemis Fowl, #1-5) 4.30 avg rating — 12,121 ratings
27.
The Icebound Land (Ranger's Apprentice, #3)
The Icebound Land (Ranger's Apprentice, #3) 4.24 avg rating — 94,673 ratings
28.
The Burning Bridge (Ranger's Apprentice, #2)
The Burning Bridge (Ranger's Apprentice, #2) 4.31 avg rating — 133,894 ratings
29.
Fablehaven: The Complete Series Boxed Set (Fablehaven, #1-5)
Fablehaven: The Complete Series Boxed Set (Fablehaven, #1-5) 4.61 avg rating — 8,792 ratings
30.
The Dragonet Prophecy (Wings of Fire, #1)
The Dragonet Prophecy (Wings of Fire, #1) 4.23 avg rating — 77,952 ratings
31.
Harry Potter and the Sorcerer's Stone (Harry Potter, #1)
Harry Potter and the Sorcerer's Stone (Harry Potter, #1) 4.47 avg rating — 11,064,040 ratings
32.
The Emerald Atlas (The Books of Beginning, #1)
The Emerald Atlas (The Books of Beginning, #1) 3.95 avg rating — 23,342 ratings
33.
The Battle for Skandia (Ranger's Apprentice, #4)
The Battle for Skandia (Ranger's Apprentice, #4) 4.36 avg rating — 105,089 ratings
34.
Syren (Septimus Heap #5)
Syren (Septimus Heap #5) 4.12 avg rating — 35,489 ratings
35.
Seeds of Rebellion (Beyonders, #2)
Seeds of Rebellion (Beyonders, #2) 4.29 avg rating — 31,977 ratings
36.
The Invention of Hugo Cabret
The Invention of Hugo Cabret 4.22 avg rating — 188,171 ratings
37.
Erak's Ransom (Ranger's Apprentice, #7)
Erak's Ransom (Ranger's Apprentice, #7) 4.33 avg rating — 68,789 ratings
38.
Halt's Peril (Ranger's Apprentice, #9)
Halt's Peril (Ranger's Apprentice, #9) 4.39 avg rating — 62,921 ratings
39.
The Siege of Macindaw (Ranger's Apprentice, #6)
The Siege of Macindaw (Ranger's Apprentice, #6) 4.34 avg rating — 74,785 ratings
40.
The 39 Clues Complete Collection (The 39 Clues, #1-10)
The 39 Clues Complete Collection (The 39 Clues, #1-10) 4.37 avg rating — 4,008 ratings
41.
The Sorcerer in the North (Ranger's Apprentice, #5)
The Sorcerer in the North (Ranger's Apprentice, #5) 4.28 avg rating — 81,574 ratings
42.
Chasing the Prophecy (Beyonders, #3)
Chasing the Prophecy (Beyonders, #3) 4.39 avg rating — 22,837 ratings
43.
The Kings of Clonmel (Ranger's Apprentice, #8)
The Kings of Clonmel (Ranger's Apprentice, #8) 4.30 avg rating — 63,251 ratings
44.
The Runaway King (Ascendance, #2)
The Runaway King (Ascendance, #2) 4.24 avg rating — 52,718 ratings
45.
The Time Paradox (Artemis Fowl, #6)
The Time Paradox (Artemis Fowl, #6) 4.08 avg rating — 94,392 ratings
46.
The Mysterious Benedict Society (The Mysterious Benedict Society, #1)
The Mysterious Benedict Society (The Mysterious Benedict Society, #1) 4.20 avg rating — 171,883 ratings
47.
The Amulet of Samarkand (Bartimaeus, #1)
The Amulet of Samarkand (Bartimaeus, #1) 4.04 avg rating — 133,381 ratings
48.
The Medusa Plot (39 Clues: Cahills vs. Vespers, #1)
The Medusa Plot (39 Clues: Cahills vs. Vespers, #1) 4.09 avg rating — 30,352 ratings
49.
Slathbog's Gold (Adventurers Wanted, #1)
Slathbog's Gold (Adventurers Wanted, #1) 4.20 avg rating — 12,392 ratings
50.
A King's Ransom (The 39 Clues: Cahills vs. Vespers, #2)
A King's Ransom (The 39 Clues: Cahills vs. Vespers, #2) 4.15 avg rating — 22,041 ratings
51.
The Shadow Throne (Ascendance, #3)
The Shadow Throne (Ascendance, #3) 4.26 avg rating — 37,306 ratings
52.
Darke (Septimus Heap, #6)
Darke (Septimus Heap, #6) 4.24 avg rating — 30,246 ratings
53.
The Outcasts (Brotherband Chronicles, #1)
The Outcasts (Brotherband Chronicles, #1) 4.39 avg rating — 32,202 ratings
54.
Eragon (The Inheritance Cycle #1)
Eragon (The Inheritance Cycle #1) 3.96 avg rating — 1,901,566 ratings
55.
The Reptile Room (A Series of Unfortunate Events, #2)
The Reptile Room (A Series of Unfortunate Events, #2) 4.02 avg rating — 240,477 ratings
56.
The Candy Shop War (The Candy Shop War, #1)
The Candy Shop War (The Candy Shop War, #1) 4.05 avg rating — 30,148 ratings
57.
Wild Born (Spirit Animals, #1)
Wild Born (Spirit Animals, #1) really liked it 4.00 avg rating — 22,496 ratings
58.
The Vile Village (A Series of Unfortunate Events, #7)
The Vile Village (A Series of Unfortunate Events, #7) 3.97 avg rating — 151,061 ratings
59.
The Carnivorous Carnival (A Series of Unfortunate Events, #9)
The Carnivorous Carnival (A Series of Unfortunate Events, #9) 4.01 avg rating — 137,886 ratings
60.
The Penultimate Peril (A Series of Unfortunate Events, #12)
The Penultimate Peril (A Series of Unfortunate Events, #12) 4.08 avg rating — 114,715 ratings
61.
Artemis Fowl (Artemis Fowl, #1)
Artemis Fowl (Artemis Fowl, #1) 3.86 avg rating — 558,626 ratings
62.
The Austere Academy (A Series of Unfortunate Events, #5)
The Austere Academy (A Series of Unfortunate Events, #5) 4.01 avg rating — 170,733 ratings
63.
Harry Potter and the Prisoner of Azkaban (Harry Potter, #3)
Harry Potter and the Prisoner of Azkaban (Harry Potter, #3) 4.58 avg rating — 4,677,465 ratings
64.
The Ersatz Elevator (A Series of Unfortunate Events, #6)
The Ersatz Elevator (A Series of Unfortunate Events, #6) 4.06 avg rating — 156,874 ratings
65.
The End (A Series of Unfortunate Events, #13)
The End (A Series of Unfortunate Events, #13) 4.04 avg rating — 114,503 ratings
66.
The Lost Stories (Ranger's Apprentice, #11)
The Lost Stories (Ranger's Apprentice, #11) 4.26 avg rating — 36,963 ratings
67.
The Emperor of Nihon-Ja (Ranger's Apprentice, #10)
The Emperor of Nihon-Ja (Ranger's Apprentice, #10) 4.42 avg rating — 57,936 ratings
68.
The Miserable Mill (A Series of Unfortunate Events, #4)
The Miserable Mill (A Series of Unfortunate Events, #4) 3.86 avg rating — 181,135 ratings
69.
The Atlantis Complex (Artemis Fowl #7)
The Atlantis Complex (Artemis Fowl #7) 3.97 avg rating — 62,623 ratings
70.
Cabin Fever (Diary of a Wimpy Kid, #6)
Cabin Fever (Diary of a Wimpy Kid, #6) 4.23 avg rating — 131,042 ratings
70.
The Horn of Moran (Adventurers Wanted, #2)
The Horn of Moran (Adventurers Wanted, #2) 4.22 avg rating — 11,940 ratings
72.
The Penderwicks: A Summer Tale of Four Sisters, Two Rabbits, and a Very Interesting Boy (The Penderwicks, #1)
The Penderwicks: A Summer Tale of Four Sisters, Two Rabbits, and a Very Interesting Boy (The Penderwicks, #1) 4.19 avg rating — 63,276 ratings
73.
Shatterproof (The 39 Clues: Cahills vs. Vespers, #4)
Shatterproof (The 39 Clues: Cahills vs. Vespers, #4) 4.17 avg rating — 22,258 ratings
74.
Dragon Slippers (Dragon Slippers, #1)
Dragon Slippers (Dragon Slippers, #1) 4.26 avg rating — 29,726 ratings
75.
The Fault in Our Stars
The Fault in Our Stars 4.12 avg rating — 5,580,542 ratings
76.
Fyre (Septimus Heap, #7)
Fyre (Septimus Heap, #7) 4.30 avg rating — 17,087 ratings
77.
The Hostile Hospital (A Series of Unfortunate Events, #8)
The Hostile Hospital (A Series of Unfortunate Events, #8) 3.99 avg rating — 126,440 ratings
78.
The Mysterious Benedict Society Collection (The Mysterious Benedict Society, #1-3)
The Mysterious Benedict Society Collection (The Mysterious Benedict Society, #1-3) 4.57 avg rating — 2,514 ratings
79.
Vespers Rising (The 39 Clues, #11)
Vespers Rising (The 39 Clues, #11) 4.12 avg rating — 35,636 ratings
80.
The Invaders (Brotherband Chronicles, #2)
The Invaders (Brotherband Chronicles, #2) 4.38 avg rating — 24,966 ratings
81.
The Last Hope in Hopetown
The Last Hope in Hopetown 3.93 avg rating — 608 ratings
82.
Maximum Ride Five-Book Set
Maximum Ride Five-Book Set 4.40 avg rating — 7,034 ratings
83.
The Bartimaeus Trilogy Boxed Set (Bartimaeus, #1-3)
The Bartimaeus Trilogy Boxed Set (Bartimaeus, #1-3) 4.43 avg rating — 6,028 ratings
84.
The Hunters (Brotherband Chronicles, #3)
The Hunters (Brotherband Chronicles, #3) 4.44 avg rating — 21,067 ratings
85.
The Extraordinary Education of Nicholas Benedict (The Mysterious Benedict Society, #0)
The Extraordinary Education of Nicholas Benedict (The Mysterious Benedict Society, #0) 4.37 avg rating — 19,502 ratings
86.
The Complete Calvin and Hobbes
The Complete Calvin and Hobbes 4.81 avg rating — 41,683 ratings
87.
Grip of the Shadow Plague (Fablehaven, #3)
Grip of the Shadow Plague (Fablehaven, #3) 4.30 avg rating — 97,439 ratings
88.
Rise of the Evening Star (Fablehaven, #2)
Rise of the Evening Star (Fablehaven, #2) 4.18 avg rating — 132,769 ratings
89.
Fablehaven (Fablehaven, #1)
Fablehaven (Fablehaven, #1) 4.14 avg rating — 174,964 ratings
90.
The Accidental Hero (Jack Blank Adventure, #1)
The Accidental Hero (Jack Blank Adventure, #1) 4.20 avg rating — 7,023 ratings
91.
Evertaster (Evertaster, #1)
Evertaster (Evertaster, #1) 3.91 avg rating — 550 ratings
92.
The Enchantress (The Secrets of the Immortal Nicholas Flamel, #6)
The Enchantress (The Secrets of the Immortal Nicholas Flamel, #6) 4.24 avg rating — 47,535 ratings
93.
Arcade Catastrophe (The Candy Shop War, #2)
Arcade Catastrophe (The Candy Shop War, #2) 4.17 avg rating — 10,234 ratings
94.
Princess of the Midnight Ball (The Princesses of Westfalin Trilogy, #1)
Princess of the Midnight Ball (The Princesses of Westfalin Trilogy, #1) 3.95 avg rating — 36,699 ratings
95.
The Worst Years of My Life (Middle School #1)
The Worst Years of My Life (Middle School #1) 4.04 avg rating — 23,688 ratings
96.
Trust No One (The 39 Clues: Cahills vs. Vespers, #5)
Trust No One (The 39 Clues: Cahills vs. Vespers, #5) 4.20 avg rating — 15,178 ratings
97.
The Third Wheel (Diary of a Wimpy Kid, #7)
The Third Wheel (Diary of a Wimpy Kid, #7) 4.19 avg rating — 104,005 ratings
98.
The Fire Chronicle (The Books of Beginning, #2)
The Fire Chronicle (The Books of Beginning, #2) 4.22 avg rating — 10,009 ratings
99.
The Forbidden Vial (Alessia in Atlantis, #1)
The Forbidden Vial (Alessia in Atlantis, #1) 4.18 avg rating — 152 ratings
100.
Divergent (Divergent, #1)
Divergent (Divergent, #1) 4.14 avg rating — 4,286,877 ratings
Next