The fifth book in the award-winning Accidental Alchemist Mystery Series by USA Today bestselling author Gigi Pandian.

A blackmailer obsessed with gold. A boyfriend who's more than he seems. And a treasure hidden on the Oregon coast.

Alchemist Zoe Faust's mentor Nicolas Flamel is back in her life, but catching up with him will have to wait. An elusive blackmailer has threatened to expose a dangerous alchemical secret. Zoe's boyfriend is out of town protecting secrets of his own. So when rumors of a treasure map reach Zoe, she turns her back on what sounds like no more than a game.

Zoe's mischievous living gargoyle best friend Dorian, who thinks of himself as a modern-day Poirot, is convinced the map is real—and that it's the key to proving himself as valuable to Zoe as her human family. With the help of the neighborhood teenagers, Dorian sets out to find the treasure, risking more than he planned in the process. Rumors, treasures, and secrets intersect to unearth more than Zoe could have dreamed—and could leave her family changed forever.

Can Zoe stop the threat to the family unit she's created?