Sword Art Online Progressive, Vol. 7 (manga)
Available for back-order
The mysterious player Morte has manipulated the human guilds into fighting on BOTH sides of the Elf War! While Kirito challenges him to a duel, Asuna has an important task of her own: steal the battle plans from the Forest Elves so she can end this quest before it turns deadly. They need to stop the war before anyone loses their life--permanently!