Strikeflank is sent a strange dream from Starclan. In it, he is surrounded by moss covered trees with an eerie glow. He can hear someone talking, but the sound is so faint that he can't make out what they're saying. He is awoken by a cat entering the medicine cat's den complaining of chest pain. Upon inspecting them, he discovers they have a fever as well. The illness progressively gets worse, and the cat ends up joining Starclan. Worse, the illness seems to be spreading throughout the whole clan. Positive that his dream has something to do with it, Strikeflank sets out to find this mysterious forest of whispers. Can he find answers before more cats die from this strange illness?