The Disappearance of Donatello (джен)

When the turtles got back from their dimension hopping adventure, Donatello had assumed his own nightmare journey had been just that: another universe. But, when Mikey loses his arm, he starts to consider that future may be his own. Perhaps his destiny is to disappear. As he battles against the eagerly vengeful Karai and his crumbling family, he only grows closer to his imminent future.
This fic is complete, free for your bingeing pleasure! For anyone who is rereading who originally followed this, be aware there have been some edits for general readability, but nothing major. Thanks!