Detective Comics (1937 1st Series) #663D

Direct Edition. Knightfall: Chapter 10. "No Rest for the Wicked!". The longest night in Batman's life continues as he and the Mayor are swept away by the irresistible force of millions of gallons of water from the Gotham River. Can the Dark Knight find a way out before the underground tunnel fills up and they both drown? Story continues in Batman #497