|City of Lost Dreams|
Since City of Dark Magic, Sarah has returned to Boston to work on her doctoral dissertation and broke Max's heart. Pollina's declining health brings her back to Europe, to pester Bettina Müller to get Pollina into her study. (The fact that Max appears to have moved on to a history TV show presenter does take the wind out of her sails somewhat.) Nico starts crisscrossing Europe, visiting museums to recover old alchemical equipment. Unfortunately, he finds that someone has beaten him to the punch. At each site, Nico finds that the object has been "removed for curatorial purposes." It's Nico's play and he feels someone, a Moriarty, is taunting him.
As Sarah and Nico work on trying to get Pollina's cure, someone is working against them. That someone has, like Nico, been around for four hundred years. That four hundred year old someone has lost her grip on ethical behavior and is causing all sorts of alchemical mayhem around Prague. It all leads up to gripping but trippy ending. I never would have seen it coming, though I had some inkling about who Nico's Moriarty is. This is one of the few books I've read lately that I genuinely wished was longer. When I finished it, I wished that there was another book in this series I could read.