William F. Nolan 
Logan’s Run: Black Flower #2 [EPUB ebook] 

Using the secrets of the palm flower learned from the enigmatic Historian, Logan knows his destiny will take him back to Crazy Horse Monument in the Badlands. Logan’s quest takes him from the underground of old ‘Cisco to the wild west of Vegas Complex. But plans go sideways and Logan must relearn lessons from the past and walk the precipice between fact and fate only to find himself at a crossroads. This is the second chapter of the futuristic epic sequel of William F. Nolan’s groundbreaking sci-fi classic.