Overview: Berk, Boni and Drutt play Hide and Seek while the Thing Upstairs is on holiday, until a horrible custardy yellow monster comes up through the trap door and interrupts.
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First Air Date: Oct 06, 1986Last Air date: Jul 28, 1990Season: 2 SeasonEpisode: 40 EpisodeRuntime: 5 minutesQuality: HDIMDb: 7.40 / 10 by 18 usersPopularity: 8.192Language: English