Margo tries to kill Jessica and Elizabeth. Sweet Valley High.

Last Christmas, Margo, a girl who looked exactly like the Wakefield twins, tried to take the twins' place in the Wakefield household. Now her twin, Nora, has co

In this spinoff to the New York Times–bestselling Goosebumps series, two mannequin dolls, props from a horror movie, come to life and terrify a tween boy. Luk

When Luke is confronted with Stellar, his superpowered twin from another dimension, he is highly suspicious. No one travels through time and space without a pla