Where's Tumpty?

Tumpty is trying his hardest to hide ... will he ever succeed? "I'm hiding," said Tumpty. "You can't see me!" But everyone can see Tumpty, upside down under a large cardboard box, behind a pot plant. It's very funny. But later when they really can't find Tumpty not in the cupboard or behind the curtain or in the biscuit tin suddenly it isn't funny at all...