The Time Stopper — Debra Chapoton

Secret powers. Deadly enemies. A shy love. Marcum is plucked from his easy farm life on Klaqin to serve in the Interstellar Combat Academy where he is schooled in galactic warfare. He forms a reluctant alliance with an incorrigible recruit named Coreg. Together they risk banishment, prison and death to exceed the space travel limits in a search of a time-bender. They find Selina on the out-of-bounds planet Earth. Her ability to slow the passage of time will be invaluable in fighting other aliens. But Marcum loses his heart to her and when Coreg takes her back to Klaqin Marcum remains on Earth in order to develop a far greater talent than time-bending. Now he's ready to return home and get the girl. But Coreg isn't his only obstacle.