This instalment was originally published in Look and Learn issue no. 571 on 23 December 1972.
The Prisoner of Zerss (continued . . .)
This instalment was originally published in Look and Learn issue no. 523 on 22 January 1972.
The Giant Plant (continued . . .)
This instalment was originally published in Look and Learn issue no. 476 on 27 February 1971.
