Laura Ramsey

Covenant
Covenant (2006)
Four young men who belong to a supernatural legacy are charged with stopping the evil force they released into the world years earlier. Another great force they must contend with is the jealousy and suspicion that threatens to tear them apart....

The Ruins
The Ruins (2008)
Four American friends on vacation in Cancun, Mexico, meet a German tourist that persuades them to join his hunt for his younger brother, who was last seen with his girlfriend near some mysterious ruins....