Creative Reading

Miss M is reading a book aloud to herself. She makes it up as she goes. Here's a bit of what I'm hearing:

"I'm an archaeologist. Are you an archaeologist? Come in. Have a donut or something."

"Please, policeman, will you tie my shoe?"

"Oh, Mommy, it couldn't be that! It's my beard! We'll stick it on with tape so you can be an archaeologist."

I have no idea why she's stuck on archaeologists; we haven't been talking or reading about them. Or beards either, for that matter.