 An unmasked Molly, after making an unsuccessful attempt to shoot Batman, tries to escape; Batman chases her to the top of the atomic pile (used to power the Batmobile), where she lets go of Batman's hand and falls to her death.Batman rescues the true Robin and tells him that Molly is dead, but the Riddler manages to escape to the Moldavian Pavilion, where a gathering will honor the famous Mammoth of Moldavia, which is stuffed with used, yet priceless Moldavian postage stamps.The Riddler plans to steal the mammoth, and so he drenches the pavilion with nitrous oxide, dresses in a green and pink tuxedo costume and elephant mask which conceals his gas mask, and entertains the guests with a few jokes until everyone has fallen unconscious from laughter.