What would happen if Santa's sleigh did break down? We all get told at this time of year that he is so very busy. If like the rest of us, his commute is disrupted, what happens? Thankfully the next instalment in the wonderful 'Aliens Love Underpants' series by Claire Freedman and Ben Cort answers this.

Aliens come to the rescue and add a bit of panty cheer to Christmas this year.

Instead of the potato like sack Santa uses he updates to a frilly polka dot pair of pants. Zipping down the chimney has never been so easy as he nips down on a ladders of pants and knickers (are they the same thing? I'll have to ask the aliens). Its funny, clever swash buckling festive joy. A refreshing break from sentimental christmas stories.