"It moved!"

Lily wants to bring in something really special for Show and Tell.

But she doesn't want her chocolate bunny nibbled or her puppets' strings to get tangled.

They're not allowed to bring in computer games, so Lily brings in a stone from the garden.

She can't think of a single exciting thing about it, until she decides that it moves!

Nearly everyone believes her - some even claim they saw it move too!