Y: The Last Man Vol. 5 Ring Of Truth TPB Vertigo/DC Comics. Collects issues 24 - 31. Story by Brian K Vaughn. Art by Pia Guerra.
Collecting issues #24-31 of the runaway hit series! Yorick's unbalanced sister Hero tracks him to San Francisco, only to find him seemingly succumbing to the male-killing plague after losing his still-unused engagement ring to agents of the Setauket Ring