Board Thread:Speculation House/@comment-25045079-20140826195207/@comment-4010415-20141114030523

Since Yang said that Summer didn't come back from her mission, I think one possibility is that they brought back either her body or her cloak, and her white cloak was stained red with her blood.

Someone, somewhere, actually pointed out that Ruby could have chosen to wear a red cloak because this way, no one will see her blood if she gets injured or dies.