Magic is nothing unusual to Valentine Marsh. But when she and her friends join hands to make a wish on New Year's Eve, even Val marvels at the ring of energy and light they mysteriously create. Since her magical grandmother is lying near death in a hospital, Val can only assume that this power of the Comet Committee, as they come to call themselves, is her own.

When Val is assigned to host foreign exchange student Bosanka Lonat at school, the Comet Committee's purpose becomes clear to her. Bosanka has come to America in search of her estranged relatives, and she believes that the Committee has the power to reunite them.

Disturbing things begin to happen, and Val suspects that she's dealing, not with a typical European teenager, but with someone who is capable of great evil. Together with Joel, Barb, and Lennie, Val tests her courage and magical powers to fight against the terrifying tragedy that faces them all.