Beneath This Mask by Victoria Sue

Gael Peterson has spent years hiding behind the enhanced abilities he wears like a mask, even though he is an important, confident member of the FBI’s exclusive H.E.R.O. team. The hurt and betrayal of his mom’s abandonment and his father’s fists are secrets buried deep beneath the ugly scars on his face, and he doesn’t trust Jake, his new regular human partner, with any of them. In a world where those with special abilities like Gael’s are regarded as freaks and monsters, it won’t be easy for him to rely on Jake to have his back, especially when the abilities of a vulnerable, enhanced, nonspeaking child make that child a murder suspect.

Tempers rise and loyalties are challenged, and when the serial killer targeting the enhanced finally sets his sights on Gael, not only will Gael have to trust Jake with his secrets, he might have to trust him to save his life.