Vance nudged Ashley awake just as the plane was about to land. Still half-asleep, Ashley forced herself upright and squinted out the window. The predawn darkness stretched endlessly, and she had no clue what time it was—or even where they were.

The wheels hit the runway, and soon they were filing off the plane. Ashley’s eyes caught the massive sign: Suvarnabhumi Airport, with those curvy Thai letters underneath. Her eyes went wide, and she whipped her head toward Vance, who was grinning ...