The Hounds of Tindalos

inspired on the short story
"The Whisperer in the Darkness "
first published in the March 1929 issue of Weird Tales. By H.P Lovecraft

The Hounds of Tindalos

the Hounds are said to inhabit the angles of time, while other beings (such as humankind and all common life) descend from curves.
They can materialize through any corner if it is fairly sharp—120° or less. When a Hound is about to manifest, it materializes first as smoke pouring from the corner, and finally the head emerges followed by the body. It is said that once a human becomes known to one of these creatures, a Hound of Tindalos will pursue the victim through anything to reach its quarry. A person risks attracting their attention by traveling through time.