This installment was originally published in Look and Learn issue no. 439 on 13 June 1970.
The Deadly Formula (continued . . .)
This installment was originally published in Look and Learn issue no. 402 on 27 September 1969.
This installment was originally published in Look and Learn issue no. 439 on 13 June 1970.
This installment was originally published in Look and Learn issue no. 402 on 27 September 1969.