It’s winter in the town of Eerie-on-Sea, where the mist is thick and the salt spray is rattling the windows of the Grand Nautilus Hotel. Inside, young Herbert Lemon, Lost and Founder for the hotel, has an unexpected visitor. It seems that Violet Parma, a fearless girl around his age, lost her parents at the hotel when she was a baby, and she’s sure that the nervous Herbert is the only person who can help her find them.

Every year, in the magical town of Ravenskill, Witchlings who participate in the Black Moon Ceremony are placed into covens and come into their powers as full-fledged witches. And 12-year-old Seven Salazar can't wait to be placed in the most powerful coven with her best friend! But on the night of the ceremony, in front of the entire town, Seven isn't placed in one of the five covens. She's a Spare!

Ellie McFadden has intuitive gifts. She can sense what other living things are feeling. She can even talk to animals! Too bad she can’t connect with her twin sister, Parker. Parker McFadden has kinetic gifts. She can cause shocks to the Earth and produce heat energy that explodes from her body like fire, especially when she is angry. The sisters aren’t aware of the legacy they inherited from their mother until, on their 13th birthday, two mysterious relatives on the Power side whisk them off to an isolated sanctuary called Haven.

Five years. That's how long Coyote and her dad, Rodeo, have lived on the road in an old school bus, criss-crossing the nation. It's also how long ago Coyote lost her mom and two sisters in a car crash. Coyote hasn't been home in all that time, but when she learns that the park in her old neighborhood is being demolished - the very same park where she, her mom, and her sisters buried a treasured memory box - she devises an elaborate plan to get her dad to drive 3,600 miles back to Washington state in four days...without him realizing it.

Gertrude, Eugenia, and Dee-Dee Porch do not belong. They don’t belong in the snooty town of Antiquarium, where all girls have to go to etiquette school and the only dog allowed is the bichon frise. They don’t belong with their adoptive family, where all their cousins are named Lavinia and their Aunt has more brooches than books. And they certainly don’t belong at Mrs. Wintermacher’s etiquette school—they’re far more interested in science. After getting kicked out of the last etiquette school that would take them, the girls expect to be sent away for good...