Don't Panic: A Wizard's Guide to Westeros (HP × ASOIAF)

Smart!Harry escapes through the veil and suddenly Westeros has a new wizard in town. Only Harry could turn his escape into a much-needed vacation, a growing trade empire and a small kingdom of his own. Of course, Harry has magic, a saving people thing, and knowledge of the modern world, so it's inevitable he'll shake things up. Dobby's enthusiasm is just as chaotic as you'd imagine, and Sirius is just happy to have his Godson back.