Twinmaker novels

1.

When her best friend, Libby, misuses instant transportation technology to alter her appearance, seventeeen-year-old Clair is drawn into a shadowy world of conspiracies and cover-ups as she attempts to save Libby from the hidden consequences of her actions.

3.

"In the final book in the Twinmaker series, Clair, Q, and Kari Sargent must enter The Yard, a digital landscape created by their enemy, in order to save the world"--