Trevor Trotter, thirteen-year-old, part time schoolboy and full time inventive- genius, nicknamed Cleva Treva by his schoolmates is packed off by his unsupportive parents, to spend the summer holidays with his uncle, world famous inventor Watty Trotter at "Shambles" his rambling old mansion in the country. Treva is delighted and can't wait to get there, but when he gets of the coach he is the victim of a botched kidnap attempt by an inept and seedy old crook called Inigo Scribs and his gang, Tough guy Morgan Grinder and spotty little twerp Squeeky Nails. Treva escapes and when he arrives at...