That this was not altogether a genuine thirst was proved in the third expedition. Mr. Outwood and his band were pecking away at the site of an old Roman camp. Psmith approached Mike.
"Having inspired confidence," he said, "by the docility of our demeanor, let us slip away, and brood apart for awhile. Roman camps, to be absolutely accurate, give me the pip. And I never want to see another putrid fossil in my life. Let us find some shady nook where a man may lie on his back for a bit."
Mike, over whom the proceedings connected with the Roman camp had long since begun to shed a blue depression, offered no opposition, and they strolled away down the hill.
Looking back, they saw that the archaeologists were still hard at it. Their departure had passed unnoticed.
"A fatiguing pursuit, this grubbing for mementos of the past," said Psmith. "And, above all, dashed bad for the knees of the trousers. Mine are like some furrowed field. It's a great grief to a man of refinement, I can tell you, Comrade Jackson. Ah, this looks a likely spot."
They had passed through a gate into the field beyond. At the farther end there was a brook, shaded by trees and running with a pleasant sound over pebbles.
"Thus far," said Psmith, hitching up the knees of his trousers, and sitting down, "and no farther. We will rest here awhile, and listen to the music of the brook. In fact, unless you have anything important to say, I rather think I'll go to sleep. In this busy life of ours these naps by the wayside are invaluable. Call me in about an hour." And Psmith, heaving the comfortable sigh of the worker who by toil has earned rest, lay down, with his head against a mossy tree stump, and closed his eyes.
Mike sat on for a few minutes, listening to the water and making centuries in his mind, and then, finding this a little dull, he got up, jumped the brook, and began to explore the wood on the other side.
He had not gone many yards when a dog emerged suddenly from the undergrowth, and began to bark vigorously at him.
Mike liked dogs, and, on acquaintance, they always liked him. But when you meet a dog in someone else's wood, it is as well not to stop in order that you may get to understand each other. Mike began to thread his way back through the trees.