Legends and stories about the horrible monsters living in swamps went to Britain for a long time.
The most famous ghost is "Black Dog".
There is many references are contained in the book "Folklore counties of England" about it.
One of the most chilling cases of dog-ghost occurred on stories, August 4, 1577 in the town of Bangui, which is located in the county of Suffolk.
On that day, the morning started strong thunderstorm.
In the local church at the time was a morning service.
Suddenly there was a terrible crash of thunder, and people who were in the church were shocked, they saw in a bright flash of lightning horrible huge black dog.
A huge beast with glowing eyes ran down the aisle past the people.
When he passed two men praying on their knees, they dropped dead.
The skin of another parishioner from touching a terrible beast was charred, but he survived.
When the dog was gone, people have found that the mechanism of the church clock all mangled, and on the rocks and iron-studded door were traces that resemble scratches from claws.
On the same day in Blitburge in the local church people also saw the "black dog" - here she killed two people and scorched several more.
Similar cases are described over and over again.
In Dortmure gentleman saw a strange black beast resembling a calf.
He decided to pet him, but his hand felt a void.
Immediately there was a deafening explosion, which threw the mutilated man a dozen steps.