War Drum

What happens when the wolf no longer howls at the moon?When Otsoa, a young Wolf-thread, finds he can no longer howl, a mysterious grey fog appears and begins destroying the world.Otsoa is then forced into an adventure, along with a rooster that he packed for his lunch, to find the legendary source of natural music – the War Drum.Will the world be saved if the Wolf-thread can find his howl?Or is there a deeper mystery behind the destructive fog?