Truth, Lies & Purple Potions

When thirteen-year-old Gordon Baxter stumbles across an ancient recipe for the elixir of life, he is all set to save his dying mum, but first he has to make the stuff. All he needs is a little help from his friends – except he doesn’t have any.
Enter Walter the Flim-Flam man, and Marie, Gordon’s cheerfully-violent neighbour. With them on-board, what could possibly go wrong?
Well, quite a lot actually, including the end of civilisation. Wanted by the police, chased by a gang of criminals; it’s the most hectic summer holiday Gordon’s ever had. Can he save himself, save his mum, save the world and be back at school for the beginning of term?