Highway of Fear — Helen McCabe

Rafe Perez's great love was the rainforest and its native inhabitants, so Gina, whose father ran the logging company he hated so much, could never win his heart. Her longed-for trip to Brazil meant adventure, but also danger. Perez was paid to make sure the crazy little rich girl made it safely through the jungle and got the photographs she needed for her book, but nature wasn't the only enemy they had to face, and their companions were not people to trust with your life....