Sirius Black's Adventure

You all know the story don't you? He was betrayed, captured, and escaped. But what if history was wrong? What if instead of one of the marauders betraying him, all of them did? Say he got captured, but instead of Azkaban, it was Voldemort. When he escaped, where did he go? To Camp Half-Blood of course! When they are done with him, everybody will regret abandoning him.