Warrior Cats. You either grew out of it when you were 11, or it stayed with you long, long after that, long enough to make disturbing fanfiction in your teen years. For some, like it was for Raha, it was the latter, and for more, it was the former, like River. Though aknowledging it was quite violent, and at times, horribly written, River stilled liked Warrior Cats, just not exactly to the same extrent as Raha. River loved Raha as platonically as the universe would allow, so of course, when Raha asked River to beta her Warrior Cats fanfiction, River gladly accepted, out of nostalgia and love.