by John Flanagan
Affiliate links. We may earn a commission.
Books that share its vibe, closest match first.
Golden Gate
James Ponti
Camp Valor
Scott McEwen
Forbidden City
By Royal Command
Charlie Higson
Man vs. Beast
Robert Muchamore
The Calculus Affair
Hergé
Spy School Blackout
Stuart Gibbs
Code of Honor
Alan Gratz
City of the Dead
Henderson's Boys 1 The Escape
robert muchamore
London Calling
La ragazza che spiava Hitler
Kathryn Lasky