Upon finishing their task, they retired without a word. A draught of cold air from the door again made the flames of the copper torches flicker and threw great shadows about us.

Morhange and I remained as motionless as the pale metal specters which surrounded us. Suddenly I pulled myself together and staggered forward to the niche beside that in which they just had laid the remains of the English major. I looked for the label.

Supporting myself against the red marble wall, I read:

"Number 52. Captain Laurent Deligne. Born at Paris, July 22, 1861. Died at Ahaggar, October 30, 1896."

"Captain Deligne!" murmured Morhange. "He left Colomb-Béchar in 1895 for Timmimoun and no more has been heard of him since then."

"Exactly," said M. Le Mesge, with a little nod of approval.

"Number 51," read Morhange with chattering teeth. "Colonel von Wittman, born at Jena in 1855. Died at Ahaggar, May 1, 1896.... Colonel Wittman, the explorer of Kanem, who disappeared off Agadès."

"Exactly," said M. Le Mesge again.

"Number 50," I read in my turn, steadying myself against the wall, so as not to fall. "Marquis Alonzo d'Oliveira, born at Cadiz, February 21, 1868. Died at Ahaggar, February 1, 1896. Oliveira, who was going to Araouan."

"Exactly," said M. Le Mesge again. "That Spaniard was one of the best educated. I used to have interesting discussions with him on the exact geographical position of the kingdom of Antée."