Okay I seriously cracked my cake triangular like a K. How do I put it back together....I can't make another one, I am gonna loose it! I need this cake for tomorrow.

you can run some bc in there and push it back together!

do you have your board cut to fit it? if so, put BC down on the board, then put your first peice down and put BC where it broke, then shove it together. The BC On the board will help keep it in place in addition to the BC where it broke.

I agree with all of the above. Use bc to glue it back together.
I had a cake crak on me recently, right in half while I was turning out onto the board. While it was still warm I very gently pushed it back together.
Once it cooled I filled the crack with bc. and iced the whole cake and you couldn't tell at all. It's the scooby cake in my photos.