Thankfully he remembered McLean. Kilts, that was the thing. Tartans, the real Scotch plaids. Some use, now, McLean's precious sporrans.... He'd look him up at once.

Out of the crowded Mograby he made his way on foot to the Esbekeyih quarters where the streets were wider and emptier of Cairene traffickers and shrill itinerates and laden camels and jostling donkeys.

It was a glorious day, a day of Egypt's blue and gold. The sky was a wash of water color; the streets a flood of molten amber. A little wind from the north rustled the acacias and blew in his bronzed face cool reminders of the widening Nile and dancing waves.

He remembered a chap he knew, who had a sailing canoe—but no, he was going to get a costume for a fool ball!

Disgustedly he turned into the very modern and official-looking residence that was the home of his friend, Andrew McLean, and the offices of that far-reaching institution, the Agricultural Bank.

A white-robed, red-sashed and red-fezed houseboy led him across the tiled entrance into the long room where McLean was concluding a conference with two men.

"Not the least trace," McLean was saying. "We've questioned all our native agents—"

Afterwards Ryder remembered that indefinite little pause. If the two men had not lingered—if McLean had not remembered that he was an excavator—if chance had not brushed the scales with lightning wings—!

"Ever hear of a chap called Delcassé, Paul Delcassé, a French excavator?" McLean suddenly asked of him. "Disappeared in the desert about fifteen years ago."

"He was reported, monsieur, to have died of the fever," one of the men explained.