Mirabelle fired a shot, aimed above his head, towards the old poplar. The man ducked and ran. Clear of the gate he dropped to the cover of a hedge, where his men already were, and she heard the murmur of their voices distinctly, for the day was still, and the far-off chugging of the trolley’s engine sounded close at hand. Presently she saw a head peep round the hedge.

“Can I have five minutes’ talk with you?” asked the leader loudly.

He was a thick-set, bronzed man, with a patch of lint plastered to his face, and she noted unconsciously that he wore gold ear-rings.

“There’s no trouble coming to you,” he said, opening the gate as he spoke. “You oughtn’t to have fired, anyway. Nobody’s going to hurt you——”

He had advanced a yard into the garden as he spoke.

Bang, bang!

In her haste she had pressed butt and trigger just a fraction too long, and, startled by the knowledge that another shot was coming, her hand jerked round, and the second shot missed his head by the fraction of an inch. He disappeared in a flash, and a second later she saw their hats moving swiftly above the box. They were running towards the waiting car.

“Stay here, Alma!”

Alma Goddard nodded grimly, and the girl flew up the stairs to her room. From this elevation she commanded a better view. She saw them climb into the van, and in another second the limp body of the guard was thrown out into the hedge; then, after a brief space of time, the machine began moving and, gathering speed, disappeared in a cloud of dust on the Highcombe Road.

Mirabelle came down the stairs at a run, pulled back the bolts and flew out and along the road towards the still figure of the detective. He was lying by the side of the ditch, his head a mass of blood, and she saw that he was still breathing. She tried to lift him, but it was too great a task. She ran back to the house. The telephone was in the hall: an old-fashioned instrument with a handle that had to be turned, and she had not made two revolutions before she realized that the wire had been cut.