The Prime Minister's Brain

by Gillian Cross

Published 1 October 1985
Only Dinah is good enough to beat the new computer game, Octopus Dare. Soon she realises that the Octopus is trying to control her and the other entrants in the Junior Computer Brain of the Year competition. Why is it happening, and how is the demon headmaster involved?

Twin and Super-Twin

by Gillian Cross

Published 1 April 1990
The interaction between two street gangs is dynamically affected when David, one of a set of twins, finds his arm transforming into a snake, sausages, and other bizarre objects.

The Demon Headmaster

by Gillian Cross

Published 1 August 1982
On the first day at her new school, Dinah realizes something is horribly wrong. The children are strangely neat and well-behaved; they even work during playtime. What makes them behave this way? The answer is fear, but what is the secret of the Headmaster's control? Recently voted one of the top 20 books of the last 20 years, this is the first title in the best-selling series which inspired the top-rating TV series.