This is easy. Just continue the story - funny, scary, silly, whatever you like. I'll start us off:
Jack watched as the Santa Claus Express drew into the station. When the man in red stepped down from the train, Jack left his hiding place and..........
So they all headed off down south to jingl's place but unfortunately a huge wildcat leapt out of the forest and ate them all up. This was, in fact, a certain rescued-from-the-wilds moggie but as they were all totally pie-eyed by this point they couldn't realise that. So they were eaten. Except soop. Who returned home to find a huge box of luxury chocolates had been delivered by the folks at Gransnet! Which made that jingl so jealous (for ever after!!!) that she disappeared in a cloud of green smoke up her own chimney.