Toller lets him loose every night, and God help the trespasser whom he lays his fangs upon.

For goodness' sake don't you ever on any pretext set your foot over the threshold at night, for it's as much as your life is worth.' "The warning was no idle one, for two nights later I happened to look out of my bedroom window about two o'clock in the morning.
It was a beautiful moonlight night, and the lawn in front of the house was silvered over and almost as bright as day.

I was standing, rapt in the peaceful beauty of the scene, when I was aware that something was moving under the shadow of the copper beeches.

As it emerged into the moonshine I saw what it was.

It was a giant dog, as large as a calf, tawny tinted, with hanging jowl, black muzzle, and huge projecting bones.