From archive.org:
Fantasy, horror, and dream meet in this classic 1926 novella by H.P. Lovecraft. Randolph Carter defies the Dream Gods, as he sets out to find their hidden home on unknown Kadath, and the vision of a lovely sunset city that somehow his heart remembers. But the Other Gods have agents in the dream world -- creatures of power and terror....
H.P. Lovecraft is best known as a horror writer, but here he shows his more cheerful side. We revisit Ulthar (of "The Cats of Ulthar"), and spend a lot of time with cats. The influence of Lord Dunsany is very strong on Lovecraft's writing in this work, but not slavishly so. Even if you don't normally like Lovecraft, you may well like this.