Best Science Fiction Novels with Brother & Sister Main Characters

1.
The Secret of the Great Red Spot (The Jupiter Chronicles #1)
The Secret of the Great Red Spot (The Jupiter Chronicles #1) 3.98 avg rating — 105 ratings
2.
The Clay Lion (The Clay Lion, #1)
The Clay Lion (The Clay Lion, #1) 4.08 avg rating — 836 ratings
3.
Star Wars: Jedi Search (The Jedi Academy Trilogy, #1)
Star Wars: Jedi Search (The Jedi Academy Trilogy, #1) 3.68 avg rating — 18,168 ratings
4.
Trapped (The Prometheus Project, #1)
Trapped (The Prometheus Project, #1) 4.10 avg rating — 1,858 ratings
4.
Podkayne of Mars
Podkayne of Mars 3.67 avg rating — 9,434 ratings
4.
Heirs of the Force (Star Wars: Young Jedi Knights, #1)
Heirs of the Force (Star Wars: Young Jedi Knights, #1) 3.65 avg rating — 4,394 ratings
4.
Dischafer
Dischafer 4.83 avg rating — 6 ratings
8.
Star Wars: Splinter of the Mind's Eye
Star Wars: Splinter of the Mind's Eye 3.27 avg rating — 11,733 ratings
9.
Captured (The Prometheus Project, #2)
Captured (The Prometheus Project, #2) 4.30 avg rating — 992 ratings
9.
Lyon's Pride (The Tower and the Hive, #4)
Lyon's Pride (The Tower and the Hive, #4) 3.97 avg rating — 9,353 ratings
11.
Stranded (The Prometheus Project, #3)
Stranded (The Prometheus Project, #3) 4.34 avg rating — 1,071 ratings
12.
Out of This World
Out of This World 4.16 avg rating — 570 ratings
13.
Star Wars: Dark Apprentice (The Jedi Academy Trilogy, #2)
Star Wars: Dark Apprentice (The Jedi Academy Trilogy, #2) 3.64 avg rating — 15,716 ratings
14.
Changelings (Twins of Petaybee, #1)
Changelings (Twins of Petaybee, #1) 3.82 avg rating — 2,620 ratings
15.
The Year of Lightning (Time Shift Trilogy, #1)
The Year of Lightning (Time Shift Trilogy, #1) 4.17 avg rating — 112 ratings
15.
Erica's House: Their Shrunken World
Erica's House: Their Shrunken World 4.21 avg rating — 14 ratings
17.
Shadow Academy (Star Wars: Young Jedi Knights, #2)
Shadow Academy (Star Wars: Young Jedi Knights, #2) 3.62 avg rating — 3,584 ratings
17.
Blood Red Road (Dust Lands, #1)
Blood Red Road (Dust Lands, #1) 3.91 avg rating — 62,145 ratings
17.
The Silver Ship and the Sea (The Silver Ship, #1)
The Silver Ship and the Sea (The Silver Ship, #1) 3.72 avg rating — 378 ratings
17.
An Ice Cold Grave (Harper Connelly, #3)
An Ice Cold Grave (Harper Connelly, #3) 3.97 avg rating — 36,986 ratings
21.
Lightsabers (Star Wars: Young Jedi Knights, #4)
Lightsabers (Star Wars: Young Jedi Knights, #4) 3.75 avg rating — 3,151 ratings
21.
Grave Sight (Harper Connelly, #1)
Grave Sight (Harper Connelly, #1) 3.87 avg rating — 66,086 ratings