Hard Instincts by Chloe Fischer

Drake had always tried his best to live his life without attracting attention to himself or his four boys, knowing that if anyone found out about their special powers, his kids would be the target of every military group in the world…
But eventually, Drake grew too secure, breaching the very rules meant to keep his family safe.

In an event which nearly cost him his life, Drake makes a devastating decision and loses his boys, possibly forever.
Twenty-eight years later, when all hope of ever locating the whereabouts of his full-grown, powerful sons is disappearing, Drake hears a rumor…there’s a man in the military that has become a very successful operative – but strange things seem to happen around him…
Could this man be one of Drake’s long lost sons?
Ryder has lived life plagued by a sense that he didn’t fit in with the family who raised him, and when strange and violent things start happening around him, Ryder escapes into military life – and with his special skills, he excels.

But when things go awry during a mission, he ends up in the hands of a beautiful but traumatized doctor who inexplicably captures his soul. But Paige has a violent secret too. When she finds out what he can do, will Paige turn against him – or toward him?