[Twilight was just writing about her studies on a new infection that spread into Equestria. The other members of the main 6 we're panicking in the bunker.] Twi's notes: The Tower disease is a very violent and cannibalistic. The symptoms include: Snakes growing out of hair and tail. bones cracking and break. head aches. limbs stretching out or shrinking. rotting/decaying of the body. loss of appetite. vision loss. self cannibalism. and inability to speak.