Leave No Trace

Seventeen-year-old Lexi has been living in a remote stretch of the Rocky Mountain woods since her father dragged her there ten years ago, after her mother and baby brother were afflicted with a magical sickness. Her paranoid father thinks they've escaped the magic, and that as long as they never leave the woods, they'll be safe.

So Lexi never tells him about her friend Gil, who turns up sometimes in a birch copse that travels with him, and who is definitely not human. She especially doesn't ...