The Invisible FoeBOOK IVReading editionChapter navigation45 reading sectionsGo to chapterChoose a chapter…Front matterBOOK IChapter IChapter IIChapter IIIChapter IVChapter VChapter VIBOOK IIChapter VIIChapter VIIIChapter IXChapter XChapter XIChapter XIIChapter XIIIChapter XIVChapter XVChapter XVIChapter XVIIChapter XVIIIBOOK IIIChapter XIXChapter XXChapter XXIChapter XXIIChapter XXIIIChapter XXIVChapter XXVChapter XXVIChapter XXVIIChapter XXVIIIChapter XXIXChapter XXXChapter XXXIChapter XXXIIBOOK IVChapter XXXIIIChapter XXXIVChapter XXXVChapter XXXVIChapter XXXVIIChapter XXXVIIIChapter XXXIXChapter XLPrevious chapter ←Book 3 — Chapter XXXIINext chapter →Book 4 — Chapter XXXIIIAll chapters and sections (45)Opening pagesFront matterBooks1Book 1 · Chapters123456Books2Book 2 · Chapters789101112131415161718Books3Book 3 · Chapters1920212223242526272829303132Books4Book 4 · Chapters3334353637383940THE LIGHT◇← CHAPTER XXXIICHAPTER XXXIII →