"Lunching late, aren't you?" he observed.

Brodie seemed scarcely to hear him. His eyes were fixed upon the young Belgian, who, with his arm in a sling, was being helped carefully into his overcoat. Suddenly, however, he stretched out his arm, laid it upon Harvey Grimm's shoulder and drew him to within whispering distance.

"See here, Harvey," he muttered, "I don't know what game you're playing, but if any man tries to boost me, he's going to have a rough journey."

Harvey Grimm was shocked.

"My dear fellow!——" he began.

"Don't waste your breath," the other interrupted, as he turned away. "Remember I've got my eye on you, as well as our friend there. It may be a waiting game, but you'll find me there at the finish, sure as my name's Paul Brodie."

He strode off towards the telephone booth. Harvey Grimm found his hand gripped by his guest.

"My sister and I thank you for a very excellent luncheon, Mr. Grimm," Captain Brinnen said politely. "I trust that you will soon give us an opportunity of repaying your hospitality."

"You will come to me," the girl whispered in Aaron Rodd's ear, "at number thirteen, Grosvenor Square, this afternoon at five o'clock...."

The poet was inclined to be peevish as the three men walked down the Strand.