Double Threat is a new stand-alone thriller from New York Times bestselling author F. Paul Wilson. Daley has a problem. Her 26-year life so far has been unconventional, to say the least, but now she's got this voice in her head. It claims to be a separate entity that's going to be sharing her body from now on. At first she thinks she's gone schizophrenic, then considers the possibility that maybe she really has been invaded - but by what? Medical tests turn up nothing, yet the voice persists... and won't stop talking! When she finally accepts the reality that she has a symbiont, she discovers that together they can cure people of the incurable. Maybe hosting a symbiont isn't such a bad thing. She retreats to a remote town in the southwest desert to hone her healing skills. But there she runs afoul of the Pendry clan, leaders of an obscure cult that worships the Visitors who inhabited the area millions of years ago. They plan to bring them back but believe Daley is the prophesied "Duad" who will undo all the cult's efforts. She must be eliminated. You know things are bad when the voice in your head is the only one you can trust.

Double Dose picks up right where Double Threat leaves off – with a snarl of threads to tie up, a host of mysteries to explain, all complicated by some embarrassing intrusions from the past. So many secrets in Nespodee Springs…the biggest is revealed when Rhys and Daley track down the second half of the Pendry film and learn the secrets of the clan’s Tesla tower and the catastrophic details of the plan to bring the Visitors back to Earth. But the insidious malady known as “the horrors” remains a mystery, claiming more and more victims every day. Daley and Pard learn they can cure it – if only the powers that be will allow them. Daley finds herself in an ironic For the first time in her life she’s trying to play it straight – help people instead of scam them – and no one will let her. In the past, when she’s spun a web of lies, the marks lapped it up like honey. Now, when she’s telling the truth – a life-saving truth – no one believes her. And meanwhile, over the Salton Sea, an ominous darkness is growing…