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.

In Book One, Sudi is thrilled when she finds a mysterious invitation in her locker. Only one person could have invited her to dinner at Sky Terrace -- her not-so-secret crush, Scott. But when she shows up to meet him, things don't go as planned. Instead of Scott, she finds a strange guy named Abdel, with two girls she's never met before. Abdel claims Sudi and the other girls are the descendants of Egyptian pharoahs, powerful ancestors who have given them magical gifts and powers of transformation.

At first, Sudi refuses to buy any of it. But when evil forces begin to threaten her world, she has no choice but to believe.