The Hound of the Baskervilles

Origin
Sir Arthur Conan Doyle's The Hound of the Baskervilles is the third crime book starring Sherlock Holmes. The plot concerns Holmes' return and the attempted murder based off of the legend of a fearsome hound of supernatural origin. Originally serialized in The Strand Magazine from August 1901 to April 1902, it is widely regarded as one of the best Sherlock Holmes novels that Doyle wrote. It has had a number of movies based off of it as well as several television episodes.

Effects
When read, it summons a completely invisible dog known as the Hound of the Baskervilles.

When summoned by its reader, the Hound often destroys everything in its path to kill the person it wants. It is unclear as to who it will kill when it is summoned, but if it has attacked a certain family before, it will again.

The people who aren't killed by the Hound are never the same again. Most of them end up with severe injuries from the mysterious creature, while others suffer extreme levels of grief and depression. This is usually caused by both the loss of loved ones and the shock of realizing what caused the deaths they witnessed. But while some mope, others have begun to fight against the creature, hoping to avenge the deaths of friends and family. Unfortunately, this has lead them into insanity as they hopelessly plan the Hound's demise.

Collection
The book was found by a strange girl who called herself Sarah Holmes. She explained that she found it in an abandoned house near London. The family who lived there found the book in the mail, only to be killed by the monster inside.

A neighbor of the family lapsed into insanity, calling the monster a "gigantic hound with glowing fur and red eyes".

Was it a coincidence that the book was called the Hound of the Baskervilles? Or was it only a murder worthy of its own whodunnit novel?

This story belongs to Sarah Holmes, and is part of her private collection. Because of this, it can only be taken out of said collection for research only.