Einin pretended to wrack her brain for ideas, wringing her hands nervously and chewing her lip. "Ah...ah...um...! Well, how did you get in here?" she said, and then shot a look around the yard. She could hear the guards, hear the steady fall of their feet, and now her nervousness wasn't all feigned.
Which, of course, added legitimacy to her ruse!
"Um...uh...oh! There's a hole in the wall! There!" she said, pointing. "Beneath the wall, I mean, hidden by all the bushes. I've seen cats slip under there before. Not sure if it's big enough for a person, but it's worth a look!"
Of course, it was big enough for a person, because she used it all the time.