Mercy Watts and her grandad, Ace, survived the Sturgis Motorcycle Rally and are racing home ahead of a stalker whose plans for the Watts clan remain unknown.
But they’re too slow and what Mercy finds at home spins her in a new and darker direction, taking her back out to her least favorite place on Earth, Hunt Hospital for the Criminally Insane. Soon she’s sucking up to a serial killer and going toe-to-toe with a rogue rapist.
Mercy wants to hand this case off to her father, Tommy Watts, but the great detective is missing in action, just when his family needs him most. So it’s up Mercy and her nerd crew and they’re going to have to power through, battling the cops, the FBI, and a killer who has connections and no scruples.
Mercy Watts is trying to recover from a tumble through a rocky river, but crime just won’t let her be. A retired librarian takes a life and Mercy takes her case under duress, of course. Soon she’ll be drawn in by this unusual criminal and she’ll have a choice to make with painful consequences.
The Fibonacci family saved Mercy Watts’ life and now she owes them a favor. Calpurnia Fibonacci calls on Mercy to make good. When you’re dealing with a powerful mafia family, refusing isn’t an option. So Mercy travels to Paris, home of the Louvre, catacombs, and secrets, to search for the identity of a woman glimpsed for just a moment on the fashionable Rue Cler and some answers to a few family mysteries of her own. To make matters worse, Chuck and Aaron tag along and they have agendas of their own. With the mafia and the shadowy Klinefeld Group involved, finding the wife of Riley will be much more dangerous than she ever expected.