The joke was on Morgan, though, when he returned and found the undead Martha shambling around with her shackled appendage having been completely ripped from her torso.
After Morgan came across Jimbo’s face-splotched corpse, he soon discovered an unconscious Martha, bordering on death from her uncleaned wounds.
Against her wishes, Morgan attempted to take her to find the others, whose safety had all been sabotaged.
(Inspired, perhaps, by the familiar phrases she’d written in marker on his face.)