A girl stains a carpet and moves all the furniture into a big pile in the middle of the room to hide the stain. I vaguely remember her name being Harriet but I could be wrong about that. A 70s book for young kids, illustrated.
Stump the Bookseller
New format, same book stumper solving.
Unfortunately Harriet by Rosemary Wells (1972) Dial Press. Harriet spills varnish on the new brown rug and decides to run away when she can’t remove the stain.