Dr. Eden came down in time to hear that. A large young man, he stood over them looking very awkward and uncomfortable.

“I’m sure Dr. Eden has done everything that can be done,” said Reggie gently. “I’ll go up, please.” And they left the mother to her husband, that flushed, gaunt face peering round the corner as they kept step on the stairs.

“The child’s seven years old,” said Eden. “There’s no history of any gastric trouble. Rather a good digestion. And then this—out of the blue!” Reggie went into a nursery where a small boy lay huddled and restless with all the apparatus of sickness by his bed. He raised a pale face on which beads of sweat stood.

“Hallo, Gerald,” Reggie said quietly. “Mother sent me up to make you all right again.” He took the child’s hand and felt for the pulse. “I’m Mr. Fortune, your fortune, good fortune.” The child tried to smile and Reggie’s hands moved over the uneasy body and all the while he murmured softly nonsense talk. . . .

The child did not want him to go, but at last he went off with Eden into a corner of the room. “Quite right to send for me,” he said gravely, and Eden put his hand to his head. “I know. I know. It’s horrible when it’s a child. One of the irritant poisons. Probably arsenic. Have you given an emetic?”

“He’s been very sick. And he’s so weak.”

“I know. Have you got anything with you?”

“I sent home. But I didn’t care to——”

“I’ll do it. Sulphate of zinc. You go and send for a nurse. And find some safe milk. I wouldn’t use the household stuff.”

“My God, Fortune! Surely it was at the party?”