The Secret Tomb (Arsène Lupin Book 12‪)‬

The classic series that inspired the Netflix show Lupin.

Dorothy, rope-dancer and palmist, arrives at the Château de Roborey with her circus, she’s already observed strange excavations at the grounds. Fate drags her and her motley crew of war orphans into a quest for long-lost ancestral treasure, but a new-found nemesis is close on her trail.