"Perhaps we shall separate before then," he muttered.
"How so?"
"You see, I have changed my itinerary a little. I have given up the idea of going straight to Timissao. First I should like to make a little excursion into the interior of the Ahaggar range."
I frowned:
"What is this new idea?"
As I spoke I looked about for Eg-Anteouen, whom I had seen in conversation with Morhange the previous evening and several minutes before. He was quietly mending one of his sandals with a waxed thread supplied by Bou-Djema. He did not raise his head.
"It is simply," explained Morhange, less and less at his ease, "that this man tells me there are similar inscriptions in several caverns in western Ahaggar. These caves are near the road that he has to take returning home. He must pass by Tit. Now, from Tit, by way of Silet, is hardly two hundred
kilometers. It is a quasi-classic route[[6]] as short again as the one that I shall have to take alone, after I leave you, from Shikh-Salah to Timissao. That is in part, you see, the reason which has made me decide to...."
"In part? In very small part," I replied. "But is your mind absolutely made up?"
"It is," he answered me.