Five on a treasure island
Enid Blyton
The Famous Five (1)
Origin in death
J. D. Robb & Nora Roberts
In Death (21)
Without Fail
Lee Child
Jack Reacher (6)
Partners in crime
Agatha Christie
Tommy and Tuppence (2)
The Lies of Locke Lamora
Scott Lynch
The Gentleman Bastard Sequence (1)