A collection of stories with four characters (Donna Troy, Kyle Rayner, Jason Todd, and "Bob" the Monitor) traveling the multiverse in search of (as the title suggests) Ray Palmer. Basically, this was an excuse to explore worlds in DC's recently revived multiverse:
- Earth-50: The Wildstorm Universe. This story is OK, pretty much what you'd expect of more traditional superheroes encountering folks like the Authority.
- Earth-3: Home of the Crime Society, evil counterparts of the Justice Society. However, this story is focused on the heroic Jokester. And it's by far the best in the collection, arguably the main reason to read it.
- Earth-43: Where Batman became a vampire. We get two stories here, centered on this world's version of Dick Grayson. They're just OK.
- Earth-19: Where Batman emerged in Victorian times. This story's not bad, but its main strength is that it hints at an interesting larger Victorian DCU.
- Earth-30: Where Superman was raised in the Soviet Union. Decent setup, but pretty disappointing overall, as a major chunk of the story just clones the original Red Son graphic novel.
- Earth-11: Where everyone's genders are swapped. This story doesn't do anything interesting with the idea, instead riffing on the Amazons Attack storyline. Wasted opportunity, and kinda dull besides.
Basically, read this for the Jokester story, but the rest is missable. (C+)