It was something the clans had never seen before; ragging from the youngest kit to the oldest elder. It was a monster in all forms, eating at the flesh of living cats, as it tried to reach every corner of the darkened forest. Cats died, in large amounts as it was a disease that the medicine cats had never seen or heard of before. It was a much more severe version of whitecough and spread just with contact. Worse yet, you never knew the cat had the disease until it was too late to fix, and they had already spread it onto several other cats. They would have to succeed.