What if mark went to the legend of korra universe after his fight with angstrom? Let's find out! ( I don't own anything of invincible and the legend Of korra ) (This is my first time writing a book so please don't judge me. I only writing this because, well I'm a huge fan of both invincible and the legend of korra. Also I'm not good at writing and English is NOT MY FIRST LANGUAGE OKAY)