Triplanetary is the first of Edward E. “Doc” Smith’s Lensman series, an early and influential entry in the space opera genre. Originally serialized in Amazing Stories in 1934 as a stand-alone story, Triplanetary was collected in book form in 1948 with six new chapters and numerous additions, changing the story to be a prequel to the rest of the Lensman series.
This book is part of the Standard Ebooks project, which produces free public domain ebooks.