In this sequel to "Truant from Space", Class 3 visit a museum to find out more for their project on prehistoric times. Billy, Ted and Sally find an amazing machine, and when they tamper with it two Stone Age children, Kinto and Canda, are whisked into the present.
Used availability for Brian N Ball's Stone Age Magic
March 1989 : UK Hardback
October 1990 : UK Paperback