Longest Series

1.
The Boxcar Children (The Boxcar Children, #1)
The Boxcar Children (The Boxcar Children, #1) 4.13 avg rating — 138,002 ratings
2.
Into the Wild (Warriors, #1)
Into the Wild (Warriors, #1) 4.32 avg rating — 116,813 ratings
3.
The Secret of the Old Clock (Nancy Drew Mystery Stories, #1)
The Secret of the Old Clock (Nancy Drew Mystery Stories, #1) 3.98 avg rating — 82,523 ratings
4.
The Color of Magic (Discworld, #1; Rincewind, #1)
The Color of Magic (Discworld, #1; Rincewind, #1) 3.99 avg rating — 413,627 ratings
5.
Little House in the Big Woods (Little House, #1)
Little House in the Big Woods (Little House, #1) 4.21 avg rating — 281,990 ratings
6.
The Tower Treasure (The Hardy Boys, #1)
The Tower Treasure (The Hardy Boys, #1) 3.91 avg rating — 19,540 ratings
6.
Magic's Pawn (The Last Herald-Mage, #1)
Magic's Pawn (The Last Herald-Mage, #1) 4.20 avg rating — 28,211 ratings
8.
Foreigner (Foreigner, #1)
Foreigner (Foreigner, #1) 3.92 avg rating — 10,804 ratings
8.
The Passage (The Passage, #1)
The Passage (The Passage, #1) 4.05 avg rating — 220,300 ratings
8.
Night Pleasures (Dark-Hunter, #1)
Night Pleasures (Dark-Hunter, #1) 4.19 avg rating — 82,045 ratings
8.
The Recruit (Cherub, #1)
The Recruit (Cherub, #1) 4.23 avg rating — 38,941 ratings
12.
The Capture (Guardians of Ga'Hoole, #1)
The Capture (Guardians of Ga'Hoole, #1) 3.93 avg rating — 29,855 ratings
12.
A Quick Bite (Argeneau #1)
A Quick Bite (Argeneau #1) 3.91 avg rating — 45,319 ratings
14.
The Bad Beginning (A Series of Unfortunate Events, #1)
The Bad Beginning (A Series of Unfortunate Events, #1) 4.02 avg rating — 559,270 ratings
15.
Marked (House of Night, #1)
Marked (House of Night, #1)
by: P.C. Cast
3.82 avg rating — 517,867 ratings
16.
Dragonflight (Dragonriders of Pern, #1)
Dragonflight (Dragonriders of Pern, #1) 4.08 avg rating — 142,193 ratings
17.
The Sword of Shannara (The Original Shannara Trilogy, #1)
The Sword of Shannara (The Original Shannara Trilogy, #1) 3.77 avg rating — 100,419 ratings