There were two of them. Giant Puffballs love the damp weather we've been having all summer. Someone had smashed one with a stick, but the other one was still in one piece.
It measured 18" across... no kidding! It was huge.
The only thing I had with me to give some idea of scale was Tessa's leash.
I left it where it was. Giant puffballs are edible, but this one was a bit too big for my frying pan!