I promised readily enough. Then he bade me get my tea and he sank back again into his chair. Once I asked him timidly if he were not going to have some, but he took no notice. When I had finished he led me softly upstairs and locked me in my room. Never to this day have I forgotten that dull look of hopeless agony in his face as he turned away and left me.

CHAPTER III.
THE MURDER AT THE SLATE-PITS.

It was late on this same evening. All day long the thunder had been rumbling and growling, and now the storm seemed close at hand.

I had partly undressed, but it was too hot to get into bed, so I leaned out of my wide-open window, watching the black clouds hanging down from the sky, and listening to the rustling of leaves in the wood—sure sign of the coming storm.

The air was stifling; and, longing feverishly for the rain, I sat in the deep window-sill and looked out into the scented darkness, for honeysuckle and clematis drooped around my window and the garden below was overgrown with homely, sweet-smelling flowers.

Suddenly I started. I was quick at hearing, and I had distinctly caught the sound of a light, firm step passing down the garden path beneath. My first impulse was to call out, but I checked it when I recognised the tall, graceful figure moving swiftly along the gravel walk in the shade of the yew-hedge. It was my mother!

I watched her, scarcely believing my eyes. What could she be wanting in the garden at this hour? And while I sat on the window casement, wondering, a cold shiver of alarm chilled me, for I saw a man creep stealthily out from the wood and hurry across the little stretch of meadow towards the garden gate, where she was standing.

The moon was shining with a sickly light through a thick halo of mist and I could only just distinguish the figures of my mother and this man, side by side, talking earnestly. I watched them with riveted eyes until I heard a quick step on the floor behind me and a hand was laid upon my mouth, stifling my cry of surprise.

“It’s only me, Philip, lad,” whispered a hoarse, tremulous voice. “I didn’t want you to call out—that’s all. Hast seen anything of this before?” And he pointed, with shaking finger, towards the window, from which he had drawn me back a little.

I looked at him, a great horror stealing over me. His ruddy face was blanched and drawn, as though with pain; and there was a terrible light in his eyes. I was frightened and half inclined to cry.