Her roommate, Leo, glanced up from his gaming chair. “Just put it on my charging pad,” he said, nodding toward a sleek white disc on the nightstand.

Nothing.

It was 11:47 PM. Rain hammered against the window as Anya frantically patted down her sofa cushions for the third time. Her Huawei Nova 7 SE was at 3% battery, and she had an early flight to catch.