It's 1901—a brave new century—and seventeen-year-old Grace Boisvert thinks it's high time to forget that she's a dryad; being able to talk to trees just doesn't seem very useful in the automobile age. A little hair dye to touch up her green roots, and she's off to join her best friend Alice Roosevelt for a visit to glamorous Newport, RI, with her family's warnings not to fall for any human boys ringing in her ears. As it happens, the only interesting boy in Newport, Kit Rookwood, clearly prefers Alice to her. But that changes when he and his family unexpectedly follow them to a secluded Adirondack camp to join Alice's family. Grace finds herself falling in love—and not just with the breathtaking forests. She soon has other worries besides Alice's growing jealousy. The trees whisper to her of dark, angry shadows emerging from their usual haunts high in the mountains because someone is calling them forth—but who, and why? Grace will need all of her dryad powers to avert a disaster for her friends once she finds out... but the danger for her is just beginning.