Mountain Survival - Christy Barritt

When search-and-rescue park ranger Autumn Mercer and her K-9 partner, Sherlock, meet a stranger in the mountains whose brother is injured, they drop everything to help. But all they find where Derek Peterson last saw his sibling is a trail of blood — and men who want them dead. With gunmen closing in, can Autumn and Derek survive long enough to save his brother?

Search And Defend - Heather Woodhaven

Undercover to track the assassin who killed his partner, FBI special agent Alex Driscoll accidentally pulls his partner’s widow, Violet Sharp, and her search-and-rescue K-9, Teddy, into the case. Now, with Violet’s life on the line, the only way Alex can protect her is to make her — and her enormous dog — his new cover. But can they stay alive long enough to bring the hit man to justice?