18 - Skylark of Space (version 2) by Lee Hawkins Garby, E. E. Smith

The Skylark of Space is a groundbreaking novel that takes readers on an extraordinary journey through the cosmos. Serialized in 1928 in Amazing Stories, it is hailed as a pioneering work of space opera, featuring heroes whose minds, bodies, and spirits are flawless as they battle against the forces of pure evil. This classic of pulp science fiction invites you to explore the vastness of space and the depths of human courage. (Introduction from Wikipedia)