Dracula by Bram Stoker Chapter 2 Page 21

asked most frankly. Then as time went on, and I had got somewhat bolder, I asked him of some of the strange things of the preceding night, as for instance, why the coachman went to the places where he had seen the blue flames. He then explained to me that it was commonly believed that on a certain night of the year, last night, in fact, when all evil spirits are supposed to have unchecked sway, a blue flame is seen over any place where treasure has been concealed.

“That treasure has been hidden,” he went on, “in the region through which you came last night, there can be but little doubt. For it was the ground fought over for centuries by the Wallachian, the Saxon, and the Turk. Why, there is hardly a foot of soil in all this region that has not been enriched by the blood of men, patriots or invaders.