Y, the last man. Book five

"In this final volume, Yorick and Agent 355 prepare for their ultimate quest to reunite the last man with his lost love, while the person, people or thing behind the disaster that wiped out half of humanity is revealed. Then, Yorick Brown's long journey through an Earth populated only by women comes to a dramatic, unexpected conclusion. Collects Y: THE LAST MAN #49-60"--