My brother and I both play Skyrim on the same Xbox and he likes to clear out the saves so there aren't too many, so I woke up this morning and felt like playing a little Skyrim before school and I see that there are only 8 saves 7 of which are his newly started Nord and 1 that is his lvl 48 Orc. So there you have it, he just deleted my only Skyrim save that I had spent 70 hours on..
I'm guessing there isn't any way to retrieve it
The worst part is that he wont even admit it, he says it's the game that did it..