Duck, Ranma, Duck! (乱馬アヒル化計画 Ranma ahiru ka keikaku?) is the 96th chapter of the manga and the second chapter of the Mousse Returns Arc. Mousse explains how he accidentally walking into the Spring of Drowned Duck several months ago at Jusenkyo. While there, he devised a plan to defeat Ranma by using the water from the Drowned Duck Spring against him.