The Yeti Files Meet the Bigfeet by Kevin Sherry

Blizz Richards is a great guy, a caring boss, and a loyal friend. Oh, yeah...he's also a yeti! He's made it his life's mission to study cryptids like him, hidden animals who have taken a powerful oath to never be seen by the outside world. So when a photo of Cousin Brian becomes a media sensation, Brian can't handle the guilt and disappears. But it's time for the annual Bigfoot family reunion, and it won't be the same without him. Luckily, Blizz and his devoted team are on the case. Can they find their furry friend before their secret gets out for good?