A ruvoskiak is some kind of dragon or serpent or... well, nobody really knows. Actually, there was this guy named Nobody (don't ask me why, it's his name though) and he had more theories than... a lot. But that would take too long to type, so I'll just tell you this legend: sometime in the past before we had iPhones and stuff, people used these as messengers. But since they were semi-aquatic the ink was permanent and for some reason their children always look almost exactly the same as their parents. (Oh, and that light also gives off microwaves and they use it to hunt sleeping raccoons.)