Texas Bodyguard by Janie Crouch

A baby in his care…a target on their backs.

A skilled security expert and bodyguard, Brax Patterson is ready for anything…except unexpected custody of his reckless half brother’s baby boy. Someone will kill to take young Walker — and silence his resourceful new nanny, Tessa Mahoney. With her help, Brax is breaking all the rules to keep them safe. But will his and Tessa’s shattering secrets prove too lethal to survive?