Torchwood: Uncanny Valley (Big Finish Torchwood, #1.5)

What has made billionaire Neil Redmond emerge from his long seclusion? Captain Jack knows the answer, and is prepared to go to any lengths to prove it.

A couple of years ago, Neil Redmond was in a terrible accident. His recovery has been long and slow, but now he's back and looking better than ever. Much better than ever.

Dark forces have been behind Neil's transformation. Dark forces that Jack has been hunting for a long time. But Captain Jack's never been able to resist the darkness.