Fern saw Forrest by the barrels.

But if anyone asked, she DIDN'T see him. "WOW. This hallway's so EMPTY," the Hufflepuff announced loudly to herself, "I don't see ANYONE." Then she hummed for a while until she arrived at the barrels. Drawing out her wand, the brunette briefly examined her wand-hand's nails, which were had sparkly french tips, before stooping to begin tapping in the code. But first she added, "I just can't believe how EMPTY it is on this floor."