Suddenly, away on our left I saw a faint flickering blue flame. The driver saw it at the same moment. He at once checked the horses, and, jumping to the ground, disappeared into the darkness. I did not know what to do, the less as the howling of the wolves grew closer. But while I wondered, the driver suddenly appeared again, and without a word took his seat, and we resumed our journey. I think I must have fallen asleep and kept dreaming of the incident, for it seemed to be repeated endlessly, and now looking back, it is like a sort of awful nightmare. Once the flame appeared so near the road, that even in the darkness around us I could watch the driver's motions. He went rapidly to where the blue flame arose, it must have been very faint, for it did not seem to illuminate the place around it at all, and gathering a few stones, the driver formed them into some device.

Once there appeared a strange optical effect. When he stood between me and the flame he did not obstruct it, for I could see its ghostly flicker all the same. This startled me, but as the effect was only momentary, I took it that my eyes deceived me straining through the darkness. Then for a time there were no blue flames, and we sped onwards through the gloom, with the howling of the wolves around us, as though they were following in a moving circle. At last there came a time when the driver went further afield than he had yet gone, and during his absence, the horses began to tremble worse than ever and to snort and scream with fright. I could not see any cause for it, for the howling of the wolves had ceased altogether.

Vocabulary:

Check: Here it means 'Stop'
Device: Here it means 'Shape'
Momentary: Lasting for only a moment
Afield: Away
Snort: Breathe in very loudly