This is a review of a straight-up crossover fanfiction, so beware, all ye who enter here! As you can probably guess from the title, this is a Harry Potter/Avengers crossover.  Now, I read a lot of fanfiction, and I go through them fairly quickly.  I’m not in the habit of writing reviews on the actual works, let alone 250+ words on Cannonball (I know, bad habit).  But this one deserves it!  (Also, it’s not smutty!) After the death of Sirius, Harry receives a delayed […]