5.25x7-5/8" First Edition published by Arkham House in 1949. Novel features a collection of revisions, essays, notes and poems by horror author HP Lovecraft w/other writers. Perhaps the most interesting revision in the collection is "Satan's Servant" by Robert Bloch. Only 2,995 copies of this book were published. Comes w/original dust jacket, which features an illustration by Ronald Clyne. DJ is free of any clips and has some margin aging/wear but is complete and VF. Front endpapers have inked name, but book itself is o/w clean and in choice, Exc. condition.