“I know,” said Adelaide Chadd bitterly. “I suppose we shall have to tell him about this. I thought that no good fortune would ever come easily to us.”

Grant suddenly turned round. “What do you mean?” he said. “What will you have to tell Mr Bingham?”

“You know what I shall have to tell him,” said the professor's sister, almost fiercely. “I don't know that we need give it its wretched name. Do you think that the keeper of Asiatic manuscripts will be allowed to go on like that?” And she pointed for an instant at the figure in the garden, the shining, listening face and the unresting feet.

Basil Grant took out his watch with an abrupt movement. “When did you say the British Museum man was coming?” he said.

“Three o'clock,” said Miss Chadd briefly.

“Then I have an hour before me,” said Grant, and without another word threw up the window and jumped out into the garden. He did not walk straight up to the doctor and lunatic, but strolling round the garden path drew near them cautiously and yet apparently carelessly. He stood a couple of feet off them, seemingly counting halfpence out of his trousers pocket, but, as I could see, looking up steadily under the broad brim of his hat.

Suddenly he stepped up to Professor Chadd's elbow, and said, in a loud familiar voice, “Well, my boy, do you still think the Zulus our inferiors?”

The doctor knitted his brows and looked anxious, seeming to be about to speak. The professor turned his bald and placid head towards Grant in a friendly manner, but made no answer, idly flinging his left leg about.

“Have you converted Dr Colman to your views?” Basil continued, still in the same loud and lucid tone.

Chadd only shuffled his feet and kicked a little with the other leg, his expression still benevolent and inquiring. The doctor cut in rather sharply. “Shall we go inside, professor?” he said. “Now you have shown me the garden. A beautiful garden. A most beautiful garden. Let us go in,” and he tried to draw the kicking ethnologist by the elbow, at the same time whispering to Grant: “I must ask you not to trouble him with questions. Most risky. He must be soothed.”