Cave of Secrets by Shannon Redmon

What she uncovers may get her killed…

When Carli Moore finds the body of Zain Wescott’s missing sister on her family’s ranch, Zain is convinced Carli’s brother is the murderer. But Carli’s sure Zain is wrong, and she’ll prove it — if the killer doesn’t take out both her and Zain first. Now they just have to live long enough to uncover the truth…and bring a murderer to justice.