This is one of a series which takes an experiment-based approach to science and is designed to fit directly with the National Curriculum at Key Stage 2.

The texts feature episodes in the life of an eccentric family - the Sparks - with a fascination for science experiments which are skilfully woven into the storyline for children to try at home.

A real-life giant, a kidnapped orphan, a dog named Boozle and a shady private detective who used to be in the Brownies - it's a difficult case even for the Spark family, but Sam saves the day with a little help and some magical magnets.