Quick, quick summary from redon in Arlong Park Forums. - We can't see Roger Pirates Vs. Shirohige Pirates battle, but it takes some hours/days. - After the battle, they end friendly. They share treasures, food and drink in a party. - Roger talks with Oden and Shirohige about Road Poneglyphs and Laugh Tale (a lot of texts and I don't have the translation, sorry). - Roger beg Oden to join his ship, and Oden joins to Roger Pirates. - At the end of the chapter we can see Oden sculpts Roger's message in Shandorian Golden Belfry Bell in Skypiea!!!