Vera Brosgol only goes and tweets on twitter and slips one in at the 11th hour! Apparently she produced this as a mini-comic earlier in the year for conventions, but has ran out of the printed copies now so uploaded it to her website complete and free to read.
Read it HERE. You'll be glad you did.
If you like that you might want to take a look at Vera's graphic novel Anya's Ghost which was published by First Second books back in June.