And she wants us to look carefully everywhere for any scrap of paper along the hedge or around the shrubbery on the north side of the house.

One of her three sheets of plans is missing.

I don't see where in the world it could have gone, Katy." Katy spread out her hands in despair.
"There was not a scrap of a sheet of paper in the room when I cleaned it," she said, "not a scrap.

And if I had seen a sheet flying around the yard I would have picked it up.

She just must be mistaken about having lost it here.