Pretense for Murder — Karen L. Abrahamson

A dead girl, an empty British police box where one shouldn't be and a school full of suspects with too many unusual powers.
When student, Vallon Drake discovers the dead body of a girl and a British police box standing outside the American Geological Survey Preparatory Academy, she knows someone with special power committed the murder. Heck, her school exists to teach students with the talent to rewrite the landscape as future special agents. But while Vallon wants to solve the crime, everyone else wants to cover it up. Trust Vallon to break the rules to take the investigation on -- even when the cost of doing so might be her life.