Mr. Briggerland, killing time on the quay at Monaco, saw the Jungle Queen come into harbour and watched Marcus land, carrying his lines in his hand.

As Marcus came abreast of him he called and Mr. Stepney looked round with a start.

"Hello, Briggerland," he said, swallowing something.

"Well, have you been fishing?" asked Mr. Briggerland in his most paternal manner.

"Yes," admitted Marcus.

"Did you catch anything?"

Stepney nodded.

"Only one," he said.

"Hard luck," said Mr. Briggerland, with a smile, "but where is Mrs. Meredith--I understood she was going out with you to-day?"

"She went to San Remo," said Stepney shortly, and the other nodded.

"To be sure," he said. "I had forgotten that."

Later he bought a copy of the Nicoise and learnt of the tragedy on the San Remo road. It brought him back to the house, a visibly agitated man.

"This is shocking news, my dear," he panted into the saloon and stood stock still at the sight of Mr. Jack Glover.

"Come in, Briggerland," said Jack, without ceremony. There was a man with him, a tall, keen Frenchman whom Briggerland recognised as the chief detective of the Préfecture. "We want you to give an account of your actions."

"My actions?" said Mr. Briggerland indignantly. "Do you associate me with this dreadful tragedy? A tragedy," he said, "which has stricken me almost dumb with horror and remorse. Why did I ever allow that villain even to speak to poor Lydia?"