Book excerpt: The Star Trails Tetralogy, i.e. Beyond the Hidden Sky; A Dark of Endless Days; A Psilent Place Below; and Refractions of Frozen Time, takes place in a fictitious universe which includes unfamiliar vocabulary, alien races, and numerous planets. This compendium was compiled for readers who requested more detail, such as a glossary of terms as well as descriptions of the political structure, weather patterns, and Cyraria's indigenous race, the bnolar. Topical discussion guides at the chapter level are included as well for those who want to delve even deeper, including book club discussion groups and #STEM educators who could use the stories to stimulate interest in numerous scientific or sociological topics.