Beadle's New York Dime Library, No. 506

# Beadle's Half Dime Library No. 506, July 4, 1888

"Yank Yellowbird versus The Leather Jackets" by Wm. H. Manning is the featured serial. Doctor Mark Hartley, exploring Idaho's mountains, witnesses a balloon ascending with a single occupant, then discovers a young woman, Vashti Orme, kneeling beside an injured man—her brother Joseph—who fell or was pushed from the vessel by someone named Knifebelt. Hartley revives Joseph and learns the siblings harbor secrets: they fear communication with the outside world and prefer hiding in caves to settling in the nearby mining town of Hornets' Nest. Though Hartley suspects Joseph may be a fugitive, he arranges lodging with a local family. The narrative centers on this mystery-adventure with frontier and balloon-flight elements, examining the doctor's growing attraction to Vashti alongside his suspicions.