The party wakes up in the morning, only to realize that the hero has slipped away in the night and is gone. "Oh damn, he went alone" ensues, as it's obvious the hero went on a dangerous solitary errand - or worse yet, went to fight the Big Bad alone. This trope covers all kinds of important sneaky departures on behalf of major characters. On the practical side, the hero might sometimes make a Sleeping Dummy to distract the team, or resort to Percussive Prevention if someone insists on tagging along. Contrast Never Split the Party. Not to be confused with Stealth Hi Bye. Examples: