Board Thread:Episode Discussion/@comment-27312496-20181203203901/@comment-37754758-20181210163821

Better yet, Ruby could be in a fight, lose almost all her aura, then, she spots a child near an explosive Dust crystal, and, in order to save the child, she jumps in front of the crystal as it explodes, damaging an eye (maybe she loses an arm or a leg) and gets rendered comatose for the next however long. It could be like the timeskip in between volumes 3 and 4, and, to be honest, this sounds like something Ruby would do: sacrifice herself to save someone (the child) from death.