Last updated on Monday 20 January 2014 at 23:15 UK

Watch Blue's Clues Series 4 Episode 10 Online Free

Blue's Clues Series 4 Episode 10PLAY

It’s the day of Blue’s costume party and lots of silly spooky things are happening! Magenta doesn't have a costume, so we play Blue’s Clues to help her figure out what to wear. All day long our friends come visit in their costumes and we have to use our observation skills to figure out who they are. Meanwhile, we count beanbags to help Blue and Magenta determine who won their game of Monster Toss and skidoo into a picture of a haunted house, where we help our friend Boo observe, think and test ideas so we can find Oogullah Buggla.

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