It all started earlier in the afternoon when posters appeared on the walls of the house advertising Dexter's Night of Magic and Mystery.
Because Dexter had stated on his application form he was once a magician, Big Brother decided Dexter should have the chance to show off his special powers with three tricks.
For Dexter's first trick, he transformed the housemates belongings into something nice... or something nasty. Gina's shoe became Ferrero Rocher, but Sam's flip flop was turned into coal. Charlie got champagne while Jack had Brussels sprouts.
For Dexter's second illusion, he had to rekindle his art of reading minds, as Big Brother fed him quotes from the other housemates from the Diary Room via an ear piece.
Finally, Dex's two glamourous assistants joined him as he made Sam disappear from the house. Unknown to both the other housemates and Dexter himself, Sam magically reappeared in the safe house, where's he's been able to spy on the main house throughout the night.
The task will air in this evening's highlights show on Channel 5.
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