here came a knight suddenly upon me or that I was ware,
and suddenly hurt me. Then there was come Sir Andred to seek King Mark.
Thou traitor knight, said Sir Kay, an I wist it were thou that thus
traitorly hast hurt this noble knight thou shouldst never pass my hands.
Sir, said Sir Andred, I did never hurt him, and that I will report me to
himself. Fie on you false knight, said Sir Kay, for ye of Cornwall are
nought worth. So Sir Kay made carry Sir Uwaine to the Abbey of the Black
Cross, and there he was healed. And then Sir Gaheris took his leave of
King Mark, but or he departed he said: Sir king, ye did a foul shame
unto you and your court, when ye banished Sir Tristram out of this
country, for ye needed not to have doubted no knight an he had been
here. And so he departed.

CHAPTER XXXIX. Of the treason of King Mark, and how Sir Gaheris smote
him down and Andred his cousin.

THEN there came Sir Kay, the Seneschal, unto King Mark, and there he had
good cheer showing outward. Now, fair lords, said he, will ye prove any
adventure in the forest of Morris, in the which I know well is as hard
an adventure as I know any. Sir, said Sir Kay, I will prove it. And Sir
Gaheris said he would be avised for King Mark was ever full of treason:
and therewithal Sir Gaheris departed and rode his way. And by the same
way that Sir Kay should ride he laid him down to rest, charging his
squire to wait upon Sir Kay; And warn me when he cometh. So within a
while Sir Kay came riding that way, and then Sir Gaheris took his horse
and met him, and said: Sir Kay, ye are not wise to ride at the request
of King Mark, for he dealeth all with treason. Then said Sir Kay: I
require you let us prove this adventure. I shall not fail you, said
Sir Gaheris. And so they rode that time till a lake that was that time
called the Perilous Lake, and there they abode under the shaw of the
wood.

The meanwhile King Mark within the castle of Tintagil avoided all his
barons, and all other save such as were privy with him were avoided out
of his chamber. And then he let call his nephew Sir Andred, and bade arm
him and horse him lightly; and by that time it was midnight. And so King
Mark was armed in black, horse and all; and so at a privy postern they
two issued out with their varlets with them, and rode till they came
to that lake. Then Sir Kay espied them first, and gat his spear, and
proffered to joust. And King Mark rode against him, and smote each
other f