Last updated on Tuesday 21 January 2014 at 01:35 UK

Watch House of Anubis Series 1 Episode 18 Online Free

House of Anubis Series 1 Episode 18PLAY

The latest riddle leads them to the grandfather clock, but when they open it itís empty. Alfie is still fishing around so the gang tells him he was right all along about aliens./Alfie attacks Mrs Andrews, believing her to be an alien.

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