by Graham Harper, Mel Dymond Harper and Mo Holkar

It's Christmas time in the small northern town of Bassethwaite, and this year promises to be a festive season to remember. The Bassetshire Museum is throwing open its doors for a seasonal sleepover, with young and old alike bringing along their sleeping-bags and pillows to spend the night in the museum's dusty galleries. Would you prefer to sleep under the skeleton of Bassetosaurus batrachia, or in the Egyptian mummy room? And, of course, we expect a visit from everyone's favourite cheerful bearded gentleman, bringing a whole new meaning to the concept of 'grotto'. Whether you've been naughty or nice – he'll have something for you in his sack. Find out what on Saturday afternoon!