The Secret Amulet.

Fifteen-year-old Rylee Sinclair never expected the attic to hold anything more than dust and old boxes. But while helping her grandmother clean the house, she finds an ornate wooden chest locked with no key. When she finally pries it open, she discovers a glowing amulet wrapped in faded velvet. The moment she touches it, a strange warmth floods her fingers, and she sees a flash of a forest she's never been to, a crumbling tower, and a voice whispering her name.