Late into the night, Sierra tiptoed down the hall holding her breath as if breathing might alert Isadora inside her conveniently chosen bedroom across from Drake's. Sierra grumbled, wishing she had picked that room.

She wanted to knock on Drake's door when she reached it but feared the sound would carry through the silent hall. Instead, she rotated the brass doorknob and let out a sigh of relief, finding the door unlocked.

She entered, then closed the door. She glanced ...