Sun Tzu have been available to Sun Wu. Additionally, there are no records of professional generals during the Spring and Autumn period; these are only extant from the Warring States period, so there is doubt as to Sun Tzu's rank and generalship. This caused much confusion as to when "The Art of War" was actually written. The first traditional view is that it was written in 512 BC by the historical Sun Wu, active in the last years of the Spring and Autumn period (c. 722–481 BC). A second view, held by scholars such as Samuel Griffith, places "The Art of War"
The Book of the New Sun sub-series. The two later subseries are "The Book of the Long Sun" (1993–1996, four volumes) and "The Book of the Short Sun" (1999–2001, three volumes). "Long Sun" is set on a generation ship and "Short Sun" features the inhabitants of that generation ship after their long journey. Two of the "Long Sun" books were nominated for Nebula Awards. Severian, an apprentice in the torturers' guild, barely survives a swim in the River Gyoll. On his way back to the Citadel Severian and several other apprentices sneak into a necropolis where Severian first encounters Vodalus, the legendary revolutionary. Vodalus, along with