Oversight

This young adult science fiction novel blends reincarnation with a high-tech premise, following questions of betrayal and the line between good and evil. Zelly is seventeen and lives in present-day Seattle, where she calls herself a computer enthusiast. Without most people knowing, she is one of the last three reincarnated leaders of Soul Identity, an ancient organization that offers to carry people's wealth and memories forward to their future lives. She and two friends she is especially close to are set to take over the group when they turn nineteen, provided they survive that long.

Zelly is convinced that Ying, one of those friends, wants her dead. Her suspicions grow once she and Ying each obtain a vike portal, a new device that lets its user relive a past life through sight, feeling, hearing, touch, and smell. Through it, Zelly learns that Ying is the reincarnation of a leader hungry for power, and that the two girls have been rivals for centuries.

Zelly sets out to outmaneuver her rival, relying on the vike technology to reveal her future, which she believes the past has already determined. Each journey into her earlier life gives her new understanding, but what she uncovers about the history she shares with Ying puts her friendship, and possibly her soul, at stake.