The twelfth book treateth of Sir Lancelot and his madness, and containeth 14 chapters.

The thirteenth book treateth how Galahad came first to King Arthur's court, and the quest how the Sangreal was begun, and containeth 20 chapters.

The fourteenth book treateth of the quest of the Sangreal, and containeth 10 chapters.

The fifteenth book treateth of Sir Lancelot, and containeth 6 chapters.

The sixteenth book treateth of Sir Boris and Sir Lionel his brother, and containeth 17 chapters.