The night passes uneventfully. With the one hobgoblin that got away, you know that at some point, reinforcements might burst through the door. But with careful watches and eternal vigilance, the gods grant you this small mercy.
You all gain the benefit of a Long Rest, including a replenishment of all lost hit points, spent hit dice, and spell slots.
The morning looks like a rain day, and you can smell the musk in the air. After a meal, you pack your things, about to head off, when you see to the east, a flash of white in a clearing filled with sunlight, while the area is otherwise under cloud cover, perhaps a half mile away.