SAGA OF SWAMP THING (1982) #43

Swamp Thing wanders through his marsh territory, dropping growths from his anatomy as he goes. Chester comes along a little later and discovers these, believing them to be some kind of yam with possible psychedelic properties. He goes back to his apartment to fathom exactly what the substance is but is interrupted by a friend Dave whose wife Sandy is dying from cancer. Chester gives Dave a sample of the substance he’d just discovered, believing it may have a relieving antidote for her pain. Soon afterwards Chester is interrupted again this time by a violent dope-fiend: Milo.…