Mergers — Steven L. Layne

Dirk and his friends have spent their entire lives in hiding because of their racial identities. Now they must make a dangerous journey into the past with the hope of restoring the world's natural timeline and dissolving their engineered society. Each of them has special powers-Nicci, the African Traveler, manipulates time; Mateo, the Hispanic Metamorph, alters his shape; Keiko, the Asian Empath, heals with her hands; and Dirk, the Caucasian Psyche, invades others' minds-that they will use to conquer The Merger.