Six of Crows and Crooked Kingdom (2 Books Set)

Six of Crows:

Ketterdam: a bustling hub of international trade where anything can be had for the right price―and no one knows that better than criminal prodigy Kaz Brekker. Kaz is offered a chance at a deadly heist that could make him rich beyond his wildest dreams. But he can't pull it off alone. . . . Kaz's crew of six is the only thing that might stand between the world and destruction―if they don't kill each other first.

Crooked Kingdom:

Kaz Brekker and his crew have just pulled off a heist so daring even they didn't think they'd survive. But instead of divvying up a fat reward, they're right back to fighting for their lives. Double-crossed and badly weakened, the crew is low on resources, allies, and hope. As powerful forces from around the world descend on Ketterdam to root out the secrets of the dangerous drug known as  jurda parem , old rivals and new enemies emerge to challenge Kaz's cunning and test the team's fragile loyalties.