This installment was originally published in Look and Learn issue no. 568 on 2 December 1972.
The Prisoner of Zerss (continued . . .)
This installment was originally published in Look and Learn issue no. 523 on 22 January 1972.
The Great Flood (continued . . .)
This installment was originally published in Look and Learn issue no. 638 on 6 April 1974.
