Tendon Hammelherd was a slaughterer who lived in Undertown during Stormchaser. Constantly thirsty and unable to afford the increasingly high prices of drinking water in Undertown, Tendon was desperate for phraxdust. He tried to get by selling slaughterer lucky charms on the streets of Undertown. At the beginning of Stormchaser, Tendon offered to sell lucky charms to a cloddertrog. Irritated, the cloddertrog shoved him to the ground and stormed off. Ironically, this same cloddertrog was killed moments later by a falling Sanctaphrax chain. Twig, who witnessed the incident, helped Tendon gather up his merchandise, and purchased one of his lucky charms.