Direwolf’s Desire by Lily S. Thomas

When Andrea received an invitation to work on an ice age dig, her dream to make her mark as an archeologist finally came true. Digging up artifacts and holding a piece of history swells her heart with wonder. But after she discovers an intriguing wooden bracelet, her life is turned upside down as it sends her back in time… straight into the arms of a werewolf. Now she has to figure out how to get home and stay there, because that’s what she wants… right?
As potential pack leader, Rokki has too many problems to count; a brother who is also an alpha werewolf, an unsettling pack prophecy, and a human mate who is completely unfamiliar with his way of life. When Andrea continues to disappear on him, he plans to find a way to trap her in the past. If he succeeds, he will have his mate, but can she ever forgive him?
With a prophecy hanging over them, Neanderthals looming around every tree, and Andrea’s hesitation to commit to a life with Rokki, can they find a way to stay together?