This instalment was originally published in Look and Learn issue no. 684 on 22 February 1975.
The Heat Controller (continued . . .)
This instalment was originally published in Look and Learn issue no. 683 on 15 February 1975.
The Miniature Killers of Zelph (continued . . .)
This installment was originally published in Look and Learn issue no. 534 on 8 April 1972.
