Tros of Samothrace (1934-HC) was a fix-up of novelets/novellas/serials originally in Adventure 1925 to 1926. It was split into 4 paperbacks in 1970/(Avon), or 3 paperbacks in 1976/(Zebra.) Helene (Avon 1967) corresponds to chapters 82 to 96. Originally a 3-part serial "The Messenger of Destiny" in ADVENTURE February 10th, 20th, 28th 1926.