Little Miss Perfect, 'dobber' Danielle, is Tom's arch enemy at school. Everywhere he goes, Danielle seems to have her beady eye on him, trying to catch him out, and running to Mrs Waymann, the Head, with tell-tale stories about what he's been up to. Grrrr! This time, Danielle is accusing him of flooding the school cloakroom - and he wasn't anywhere near it! What a cheek. For once, Tom is going to show Danielle up for the goody two-shoes creep she really is and PROVE it wasn't him. And the only way to do that is to find out who the real culprit is...but how?