Hello,

I was wondering is there anyway at all on trying to retrieve my Minecraft world that has randomly disappeared. I was playing the world and had to get off, I shut my laptop which is a MacBook Air while the game was running, I come back after and start up Minecraft only too see that my world has gone. 

Im desperate too get this would back as it has been one of my best, i've tried everything but nothing has seem to work, If you could possible retrieve the world for me, or give me some advice on what to try do, it would be greatly appreciated!!!!!!!

Kind regards, Marcus.