"Yes," she says, simply, and turns to a blank page in her journal. Moiraine starts to sketch a diagram as she explains,

"I have used it to ward a location, such as a campsite, that I might know if anyone or anything attempted to enter or leave."

She pauses for a moment, and points her pen at the plate of food, then at Harrow.

"Replenish your resources, while I draw this."