Colgrevance has fared badly; Kay is as usual quite sure that he would fare better; but Ywain actually undertakes the task.

He has a tough battle with the knight who answers the challenge, but wounds him mortally; and when the knight flies to his neighbouring castle, is so hard on his heels that the portcullis actually drops on his horse's haunches just behind the saddle, and cuts the beast in two.

Ywain is thus left between the portcullis and the (by this time shut) door--a position all the more awkward that the knight himself expires immediately after he has reached shelter.

The situation is saved, however, by the guardian damsel of romance, Lunet (the Linet or Lynette of the Beaumains-Gareth story), who emerges from a postern between gate and portcullis and conveys the intruder safe to her own chamber.

Here a magic bed makes him invisible: though the whole castle, including the very room, is ransacked by the dead knight's people and would-be revengers, at the bidding of his widow.
This widow, however, is rather an Ephesian matron.