The Silver Lining (The Lunar River Series)

Atlas is a strong Alpha who is well respected and loved. But no one truly knew the dark secret that shackles him. Meanwhile, hunters have become a big problem for the wolves and they stop at nothing to hunt for a trophy. But just before Atlas' sister is caught, a mysterious giant wolf saves her. Atlas catches a glimpse of that wolf and is struck by more than just gratitude. There's something else and he is curious to find out what it is. From a distance, he realizes what the moon goddess has in store for him but he struggles to accept the gift and retreats. Until one day, Atlas' Beta, finds a man unconscious in a cave with a wounded leg. Not sure if he is a threat, the Beta captures the man and brings him to the pack house to treat while locking him up. Atlas follows the familiar wonderful scent into his basement, excited to find his fated mate, Cassius, sitting there...naked?
Cassius is just as excited but even he has some secrets that neither he nor Atlas are ready to face, at least not alone.