Hadrian of Durmstrang

Tired with the neglect that Harry has been faced with, and with a longing to see the world, Harry abandons his parents and brother, Eric, to tavel the world. He appears seven years later, as a Durmstrang student, and best friend of Viktor Krum, and a competetor in the Tri-Wizard Tournament. How will this affect the wizarding world? Bashing, and OOC.