"I am, old lad. I'm not making a fully-fledged felon of you sooner than I can help — and if we were both inside there'd be no one to cover the retreat if the Baron's as hot as he tells the world."

His tone forbade argument. There was a quietly metallic timbre in it that would have told any listener that this was the Saint's own private picnic. And the Saint smiled. He punched Peter Quentin gently in the biceps, and was gone.

The big iron gates that gave entrance to the garden were locked — he discovered that at the first touch. He went on a few yards and hooked his fingers over the top of the wall. One quick springy heave, and he was on top of the wall, clambering gingerly over the spikes. As he did so he glanced towards the house, and saw a wisp of black shadow detach itself from the neighbourhood of a ground-floor window and flint soundlessly across a strip of lawn into the cover of a clump of laurels.

The Saint dropped inside the garden on his toes, and stood there swiftly knotting a handkerchief over the lower part of his face. The set of his lips was a trifle grim. Someone else was also on the job that night — he had only just arrived in time.

He slipped along the side of a hedge towards the spot where the black shadow had disappeared; but he had underrated the first intruder's power of silent movement. There was a sudden scuff of shoes on the turf behind him, and the Saint swerved and ducked like lightning. Something whizzed past his head and struck his shoulder a numbing blow: he shot out an arm and grabbed hold of a coat, jerking his assailant towards him. His left hand felt for the man's throat.

It was all over very quickly, without any noise. Simon lowered the unconscious man to the ground, and flashed the dimmed beam of a tiny pocket torch on his face. A black mask covered it — Simon whipped it off and saw the sallow face of the Frenchman who had followed him with the unfortunate girl's earring.

The Saint snapped off his flashlight and straightened up with his mouth pursed in a noiseless whistle that widened into a smile. Verily, he was having a night out…

He glided across the lawn to the nearest window, feeling around for the catch with a thin knife-blade. In three seconds it gave way, and he slid up the sash and climbed nimbly over the sill. His feet actually landed on the baronial desk. The top drawer was locked: he squeezed a fine steel claw in above the lock and levered adroitly. The drawer burst open with a crash, and the beam of his torch probed its interior. Almost the first thing he saw was a heavy circlet of dull yellow, which caught the light from a hundred crimson facets studded over its surface. Simon picked it up and shoved it into his pocket. Its great weight dragged his coat all over on one side.

And at that moment all the lights in the room went on.

The Saint whirled around.