Book XIII
Chapters (not listed in original)
- Chapter I: How at the vigil of the Feast of Pentecost entered into the hall before King Arthur a damosel, and desired Sir Launcelot for to come and dub a knight, and how he went with her
- Chapter II: How the letters were found written in the Siege Perilous and of the marvellous adventure of the sword in a stone
- Chapter III: How Sir Gawaine assayed to draw out the sword, and how an old man brought in Galahad
- Chapter IV: How the old man brought Galahad to the Siege Perilous and set him therein, and how all the knights marvelled
- Chapter V: How King Arthur shewed the stone hoving on the water to Galahad, and how he drew out the sword
- Chapter VI: How King Arthur had all the knights together for to joust in the meadow beside Camelot or they departed
- Chapter VII: How the queen desired to see Galahad; and how after, all the knights were replenished with the Holy Sangreal, and how they avowed the enquest of the same
- Chapter VIII: How great sorrow was made of the king and the queen and ladies for the departing of the knights, and how they departed
- Chapter IX: How Galahad gat him a shield, and how they sped that presumed to take down the said shield
- Chapter X: How Galahad departed with the shield, and how King Evelake had received the shield of Joseph of Aramathie
- Chapter XI: How Joseph made a cross on the white shield with his blood, and how Galahad was by a monk brought to a tomb
- Chapter XII: Of the marvel that Sir Galahad saw and heard in the tomb, and how he made Melias knight
- Chapter XIII: Of the adventure that Melias had, and how Galahad revenged him, and how Melias was carried into an abbey
- Chapter XIV: How Sir Galahad departed, and how he was commanded to go to the Castle of Maidens to destroy the wicked custom
- Chapter XV: How Sir Galahad fought with the knights of the castle, and destroyed the wicked custom
- Chapter XVI: How Sir Gawaine came to the abbey for to follow Galahad, and how he was shriven to a hermit
- Chapter XVII: How Sir Galahad met with Sir Launcelot and Sir Percivale, and smote them down, and departed from them
- Chapter XVIII: How Sir Launcelot, half sleeping and half waking, saw a sick man borne in a litter, and how he was healed with the Sangreal
- Chapter XIX: How a voice spake to Sir Launcelot, and how he found his horse and his helm borne away, and after went afoot
- Chapter XX: How Sir Launcelot was shriven, and what sorrow he made and of the good ensamples which were shewed him