Cthulhu is a fictional cosmic entity created by H.P. Lovecraft. He is a gigantic, slumbering god who lies beneath the Pacific Ocean, waiting to awaken and bring about the end of the world.

The Great Old Ones are a race of ancient, powerful beings who ruled the Earth before humans. They are often depicted as being vast and incomprehensible, and their motives and goals are unknown.

The Call of Cthulhu is a short story by H.P. Lovecraft, first published in 1928. It is considered to be one of the most important works in the Cthulhu Mythos, and it introduced many of the key concepts and characters of the mythos.

Arkham is a fictional city in Massachusetts that is often associated with the Cthulhu Mythos. It is the setting for many of Lovecraft's stories, and it is home to Miskatonic University, a prestigious university that is often involved in occult and supernatural research.

The Necronomicon is a fictional book that is said to contain the secrets of the Cthulhu Mythos. It is often depicted as being a dangerous and forbidden book, and it is said to be able to drive those who read it mad.

Azathoth is a cosmic entity who is said to be the creator of the universe. He is often depicted as being a blind, idiot god who is constantly dreaming, and his dreams create the universe.

Yog-Sothoth is a cosmic entity who is said to be the gatekeeper of the universe. He is often depicted as being a vast, amorphous entity who exists outside of time and space, and he is said to be able to see all of time and space simultaneously.

Nyarlathotep is a cosmic entity who is said to be the messenger of the Great Old Ones. He is often depicted as being a tall, thin figure with a black cloak and a yellow mask, and he is said to be able to travel anywhere in the universe instantaneously.

Shub-Niggurath is a cosmic entity who is said to be the mother of all life. She is often depicted as being a vast, amorphous entity with many tentacles and mouths, and she is said to be able to give birth to new life forms at will.

Hastur is a cosmic entity who is said to be the lord of time and space. He is often depicted as being a tall, thin figure with a black cloak and a yellow mask, and he is said to be able to control time and space at will.

Cthulhu is a cosmic entity who is said to be the devourer of worlds. He is often depicted as being a gigantic, sleeping god who lies beneath the Pacific Ocean, waiting to awaken and bring about the end of the world.

Nyarlathotep is a cosmic entity who is said to be the bringer of chaos and madness. He is often depicted as being a tall, thin figure with a black cloak and a yellow mask, and he is said to be able to drive those who look upon him mad.

Yog-Sothoth is a cosmic entity who is said to be the embodiment of death and decay. He is often depicted as being a vast, amorphous entity with many tentacles and mouths, and he is said to be able to consume entire worlds.

Hastur is a cosmic entity who is said to be the ruler of the underworld. He is often depicted as being a tall, thin figure with a black cloak and a yellow mask, and he is said to be able to control the forces of darkness and death.

Cthulhu is a cosmic entity who is said to be the guardian of the gates of hell. He is often depicted as being a gigantic, sleeping god who lies beneath the Pacific Ocean, waiting to awaken and bring about the end of the world.