Shadows of Pnath. The Adventures of Alessandra Zorzi, #2

An expert thief outwits foes old and new to defeat a sinister summoning, in this hair-raising noir-thriller from the bestselling world of Arkham Horror Adventuress Countess Alessandra Zorzi has a new vocation: reacquiring the occult artifacts she stole to put into the safer hands of Miskatonic University. With her new apprentice, Pepper Kelly, Zorzi tracks the infamous Zanthu Tablets to Paris. But the city is rife with spies and the countess has many enemies.
When Pepper is kidnapped, it becomes clear that someone is out for revenge. Zorzi must rescue her apprentice, find the tablets, and prevent an old enemy from summoning an army of vengeful ghouls from the depths of the catacombs. Stealing relics is a lot harder the second time around.