Look Both Ways — Jacquelyn Mitchard

In the second book of the Midnight Twins trilogy, Meredith and Mallory Brynn are finally coming to terms with their special gifts: Meredith to see into the past, Mallory to see into the future. But they never expect that their powers will reveal danger so close to home.

Mallory must help her best friend, Eden, find the strength to defy her destiny as a shape-shifter, before Eden gets hurt--or hurts somebody else. And Merry has her own friends to worry about when her visions reveal trouble brewing on the cheerleading squad in the form of Kim Jellico.

Both Mallory and Meredith must join together to rescue their friends before it's too late.