The guide, Udo, shows the way to the stable. You climb into the loft, and Udo opens the shutters on a side window. It opens with a bang. To remind you, there’s quite a wind blowing; the sky is blue-black with storm clouds, flashing with sheet lightning. The window is about 25’ above the street.
(OCC: a fall would cause 3-18 + (3-18/2) damage)
Udo demonstrates how, by sitting on the window sill with your back towards the street, you can reach up, grab the eave and pull yourself up so your feet are on the sill. Then he scrambles up onto the ceiling and out of sight.