Heart of the Amazon Series by Margaret Daley

There was no way her brother was dead. Officials claimed the biochemist had been murdered in the Brazilian rainforest, his body fallen prey to the mists of the jungle. But Kate Collier knew Zach and couldn't leave it at that; Zach was all she had left. Tall, dark and mysterious, A. C. Slader had a past that was as turbulent as the Amazon River. Yet he was the only one who could guide her on a journey from which many never returned... moreThere was no way her brother was dead. Officials claimed the biochemist had been murdered in the Brazilian rainforest, his body fallen prey to the mists of the jungle. But Kate Collier knew Zach and couldn't leave it at that; Zach was all she had left. Tall, dark and mysterious, A. C. Slader had a past that was as turbulent as the Amazon River. Yet he was the only one who could guide her on a journey from which many never returned. A journey that would stretch the limits of their faith in God and each other... . less

Hidden treasure? Fresh from her grandfather's funeral, Maggie Somers was shocked to find his home--all she had left of him--ransacked. What wasn't so shocking was that a Collier stood among the wreckage. Maggie had grown up hearing all about the Collier clan--liars and thieves who couldn't be trusted. Yet Zach Collier asked Maggie to have faith in him, to put their feud and their families' to rest. His grandfather had also recently passed away... moreHidden treasure? Fresh from her grandfather's funeral, Maggie Somers was shocked to find his home--all she had left of him--ransacked. What wasn't so shocking was that a Collier stood among the wreckage. Maggie had grown up hearing all about the Collier clan--liars and thieves who couldn't be trusted. Yet Zach Collier asked Maggie to have faith in him, to put their feud and their families' to rest. His grandfather had also recently passed away. Zach was sure the man--like Maggie's grandfather--had been murdered for something hidden among his possessions. Something Zach and Maggie had to uncover before they became targets. less

"I'll arrest you."So threatens the tribal chief of police if Kit Sinclair dares enter Desolation Canyon alone. Hawke Lonechief insists it's too dangerous. He lost his wife to the treacherous canyon. He knows the ancient ruins Kit seeks aren't worth her life. But Kit is sure all that hiking and searching will help put her traumatic past behind her. When she risks Hawke's wrath by going alone, he finally agrees to lead her. On his terms. Impossible... more"I'll arrest you."So threatens the tribal chief of police if Kit Sinclair dares enter Desolation Canyon alone. Hawke Lonechief insists it's too dangerous. He lost his wife to the treacherous canyon. He knows the ancient ruins Kit seeks aren't worth her life. But Kit is sure all that hiking and searching will help put her traumatic past behind her. When she risks Hawke's wrath by going alone, he finally agrees to lead her. On his terms. Impossible. Because someone else is following their every move. Watching them grow closer to danger with every step... less