The ceiling?

As Megan looks around in panic she suddenly, at your suggestion, spots the ceiling tiles, all fitted fairly loosely. In theory if she could get up there then she could get into the ceiling and crawl through into the main body of the shop.

You sit back and watch as she begins to stack up boxes, sweat dripping from her brow in the increased heat of the store room.

A slight nudge from you and she pulls off her shirt, left in socks, shorts and t-shirt as she finally begins to climb the pile, her clothes clinging to her body in all the right, damp, places.