As I examined the heterogeneous collection of odds and ends that is always to be found in the pocket-pouch of a Martian warrior my hand fell upon the emblazoned radium flash torch of the black dator. As I was about to lay the thing aside as of no value in my present predicament my eyes chanced upon a few strange characters roughly and freshly scratched upon the soft gold of the case. Casual curiosity prompted me to decipher them, but what I read carried no immediate meaning to my mind. There were three sets of characters, one below another: 3|—|50 T1|—|1 X9|—|25 T For only an instant my curiosity was piqued, and then I replaced the torch in my pocket-pouch, but my fingers had not unclasped from it when there rushed to my memory the recollection of the conversation between Lakor and his