Poppy Hooper is a troubled teen: moving from school to school, causing chaos wherever she goes, never making friends or lasting connections. Ember Hawkweed is a young witch, struggling to find a place within her coven and prove her worth. The two outsiders become friends, and secretly share knowledge of their two worlds. They don't know that an ancient prophecy, and a life-changing betrayal, are the reason they are connected to each other. Switched at birth by the scheming witch Raven Hawkweed, Poppy and Ember must come to terms with their true identities and fight for their own place in the world. Enter Leo, a homeless boy with a painful past who befriends them both. Can their friendship survive? And can it withstand the dark forces that are gathering?