But Van Diest only shrugged his shoulders. Isabel ran to the window.

"And there—down there," she pointed to the street below, "there are more. What does it mean?"

The sound of her cries brought the others hurrying into the room.

"What is it now?" demanded Cassis.

But Hilbert Torrington was at the telephone. What he actually said sounded incomprehensible, but what it actually meant to the man who received it was an order to despatch a dozen men immediately to the doors of the flats and distribute a sprinkling over the neighbouring streets. There might be a fight, there probably would. If Barraclough were seen a body guard was to be formed at once.

Isabel was repeating her question at the window.

"Those men! Who are they? What does it mean?"

It was Cranbourne who had the honesty to reply.

"Danger!"

CHAPTER 33.