Long wrote a brief preface to the stillborn edition of Lovecraft's "The Shunned House" (1928). Lovecraft, in turn, ghostwrote for Long the preface to Mrs William B. Symmes' "Old World Footprints" (W. Paul Cook/The Recluse Press, 1928), a slim poetry collection by Long's aunt. Long's short novel "The Horror from the Hills" ("Weird Tales", Jan and Feb-March 1931; published in book from 1963) incorporates verbatim a letter by Lovecraft recounting his great 'Roman dream' of Hallow'een 1927. Long teamed with Lovecraft in a revision service with Lovecraft in 1928. Long's parents frequently took Lovecraft on various motor trips between 1929 and 1930, and Lovecraft visited Long at Christmas between 1932 and 1935 inclusive. Lovecraft helped set type for Long's second poetry collection, "The Goblin Tower" (1935), correcting some of Long's faulty metre in the process. Lovecraft's letters to Long after 1931 have all been lost, with the letters up to that date existing primarily in transcriptions prepared by Arkham House.