It was a quiet night in Canterlot but something fell off. The other guards were calling you paranoid ever since this weird plant showed up. Some ponies have disappeared since it showed up. You've also heard weird noises so maybe it was all in your head or so you thought till you heard a scream and heard a guard get tackled by a mutated looking pony. It's hooves were bent and all stretched out, the eyes looked bloodshot, and it just screamed with a unhinged jaw as it bit a guard. You had to hurry. As the other guards bought off time. It was clearly a infection for sure. You came in as the Princesses looked concerned.

Princess Celestia: "What's the matter? You look so out of breath. What's with all the screaming too? Seems like there's a new problem to deal with."

Princess Luna: "Tia. We should probably see What's going on. What if the guards can't handle it. We should help out."