The Devil's Cauldron — Michael Wallace

Seven years after a horrific caving accident left her paralyzed and unable to communicate with the outside world, Meggie Kerr's nightmare is about to end. A team of medical investigators specializing in locked-in syndrome has tracked her to a care center in the mountains of Costa Rica with promises to break her mind free using the latest brain treatments.

But a jealous rival and a treacherous ex-boyfriend can't let that happen. Not if there's any possibility Meggie will be able to finger them as the ones behind her “accident.”

Meggie's only chance lies with a mentally challenged young man who knows her secret and has the means to help. But first he has to hold the details in his head long enough to pull it off before it's too late.

The third book of the Devil's Deep suspense series by Wall Street Journal bestselling author Michael Wallace, The Devil's Cauldron plumbs new depths of psychological terror as it travels from the cloud forest of Costa Rica to the secrets hidden at the bottom of a cave in the Nevada desert.