The day had arrived to go to Grandma's. Katy loved her Grandma but whenever they went to stay she made them exercise, enter marathons and fed them on nettle soup, lentil burgers and porridge. The worse thing was that this year they were going to have to take an alien from Jupiter along as well. This was not going to be a relaxing holiday...This is the second in a series of four Jupiter Jane stories which combine fun, easy-to-read stories with quirky line drawings. The Boggy Bay Marathon even includes a fitness programme for aliens!