If you like The Avengers then try . . .

Bullet Point by Peter Abrahams
Bullet Point
Peter Abrahams
Fallout by Gwenda Bond
Fallout
Gwenda Bond
Dull Boy by Sarah Cross
Dull Boy
Sarah Cross
Sidekicks by Jack D. Ferraiolo
Sidekicks
Jack D. Ferraiolo
The Lost Sun by Tessa Gratton
The Lost Sun
Tessa Gratton
Dangerous by Shannon Hale
Dangerous
Shannon Hale
Insignia by S.J. Kincaid
Insignia
S.J. Kincaid
This Dark Endeavor by Kenneth Oppel
This Dark Endeavor
Kenneth Oppel
Battling Boy by Paul Pope
Battling Boy
Paul Pope
Dark Eyes by William Richter
Dark Eyes
William Richter