Meri, Sudi, and Dalila are three girls who live in Washington, D.C., but have little else in common. Or so they think. When an ancient magic is revealed, so are their true identities as Sisters of Isis. The Summoning After receiving an anonymous invitation to dinner at the Sky Terrace, Sudi meets a mysterious guy named Abdel, and two other girls, both strangers. Sudi doesn't know whether to laugh or run when Abdel claims that she and the other girls are the descendants of Egyptian pharaohs, powerful ancestors who have given them magical gifts and powers of transformation.