The Spark Files
Science, Juvenile literature, Experiments, Juvenile fiction, Spark family (Fictitious characters)
Terry Deary
William Terence Deary (born 3 January 1946) is a British children's author of over 200 books, selling over 25 million copies in over 40 languages, best known as the writer of the *Horrible Histories* series.

**Source**: [Terry Deary](https://en.wikipedia.org/wiki/Terry_Deary) on Wikipedia