by judicious use. The man behind one of those useful implements is in blackness far more impenetrable than the blackest night, for the man in front is dazzled. He can only shoot at the torch: therefore, hold it to one side and in front of you….
The light flashed out, darting round the room. Ping! Something hit the sleeve of his pyjamas, but still he could see nothing. The bed, with the clothes thrown back; the washstand; the chair with his trousers and shirt—everything was as it had been when he turned in. And then he heard a second sound—distinct and clear. It came from high up, near the ceiling, and the beam caught the big cupboard and travelled up. It reached the top, and rested there, fixed and steady. Framed in the middle of it, peering over the edge, was a little hairless, brown face, holding what looked like a tube in its mouth. Hugh had one glimpse of a dark, skinny hand putting something in the tube, and then he switched off the torch and ducked, just as another fly pinged over his head and hit the wall behind.
One thing, at any rate, was certain: the other occupant of the room was human, and with that realisation all his nerve returned. There would be time enough later on to find out how he got there, and what those strange pinging noises had been caused by. Just at that moment only one thing was on the programme; and without a sound he crept round the bed towards the cupboard, to put that one thing into effect in his usual direct manner.
Twice did he hear the little whistling hiss from above, but nothing sang past his head. Evidently
