People'd tell you Gotham has changed over the years, but that ain't the case. 
- — Unnamed Drifter
Batman: Hidden Treasures #1 is a one-shot with a cover date of December, 2010.
Synopsis for "Splash"
The "Sewer Killer" has left six bodies strangled, dead, and in the sewers. When the Batman goes to the sewers to investigate, he finds Solomon Grundy and a fight ensues. But, is Grundy really the "Sewer Killer"?
Appearing in "Splash"
Featured Characters:
Supporting Characters:
Antagonists:
- "Sewer Killer" (Single appearance; dies)
Other Characters:
- GCPD Officers
- Solomon Grundy
- Unnamed Drifter
Locations:
Items:
Vehicles:
Synopsis for "Night of the Bat"
This story is reprinted from Swamp Thing #7.
Swamp Thing arrives in Gotham City, where he and the Batman are after the same objective: Mr. E, mysterious head of the Conclave.
Appearing in "Night of the Bat"
Featured Characters:
Supporting Characters:
Antagonists:
- The Conclave
- Mr. E (Apparent Death)
- Driscoll (Single appearance)
- Dr. Hammerschmidt (Single appearance)
- Ferrett (Flashback only)
Other Characters:
- "Mutt" Swamp Thing's Dog (Dies)
- Alfred (Cameo)
- Abigail (Cameo)
- Matthew Cable (Cameo)
- Linda Holland (Dies in flashback)
- Commissioner Gordon (Cameo)
- Chief O'Hara (Behind the scenes)
Locations:
- Gotham City
- Potter Street Warehouse
Items:
Vehicles:
Notes
"Splash" is drawn entirely in splash pages, with text to the side.
See Also