—that Golo who looked bigger than a skinned mule. Then Zack knew precisely what he wanted to do. But he couldn't go where he wanted because Top-Knot stood between him and the place where the Colonel was. Being already on his feet, Zack began to move, not rapidly, but with discretion—and not towards the man with the knife. Zack moved definitely and gathered speed. He made a perfectly quiet getaway, rounded the rear end of the barge, climbed outside the gunwale, and groped his way along, clinging tooth and toe-nail to the protruding ends of the wood. The Nile flowed beneath him and the flash of a Golo knife made him seasick. Luckily the boats were aground and still. Zack scrambled on, with eyes to the rear, where the black face of the Sultan scowled after him. Because of his looking backward, he failed to see the donkey. The Most Important Donkey had taken advantage of Top-Knot's absence and came squeezing along the same ledge, nibbling at a bunch of papyrus grass that had lodged against the barge, and drifted an inch or so every time the donkey touched it. Any other beast would have given way to a colored gentleman in such a hurry; but this particular donkey was accustomed to having people give way to him. They collided; Zack yelled, but had no time to stop and argue with a donkey. Being a ground-hog case, he grabbed the first thing he
