"Don't let it come on me! Oh, don't!" wailed Kitty Harrison.
"It's there!" exclaimed Maud Greening.
"Where?"
"It's hopped on to Doris."
"Oh! It will go down my neck!" shrieked Doris.
"No, it's hopped off again."
"It's on Maggie Woodhall's desk."
"Catch it, Maggie!"
"I daren't! I daren't!"
"Squash it with your ruler."