Dear Father Christmas, I'm very sorry that you couldn't come last year because the chimney was bricked up. We asked Pa to unblock it, so you could get down this time, but he said he couldn't because the wind would come in and we'd all be very cold. Christmas is nearing, and for two little mice called Tumtum and Nutmeg it is a very busy time of year. There are cakes to bake and hams to glaze and ants to sugar. But when the mice discover that Arthur and Lucy may not be getting any presents this year they set out to find Baron Toymouse to see if he can help. They have heard that the Baron is a crotchety old mouse, but surely he wouldn't let children go without presents at Christmas time . . .