Lovecraft was virtually unknown during his lifetime and published only in pulp magazines before he died in poverty, but is now regarded as one of the most significant 20th-century authors of weird and horror fiction. Among his most celebrated tales are The Rats in the Walls, The Call of Cthulhu, At the Mountains of Madness, The Shadow over Innsmouth, and The Shadow Out of Time. His writings were the basis of the Cthulhu Mythos, which has inspired a large body of pastiches, games, music and other media drawing on Lovecraft's characters, setting and themes, constituting a wider body of work known as Lovecraftian horror.