Thus encouraged, Britomart, wearing an Amazon's armor and bearing a magic spear, set out on her quest, and met Prince Arthur and Sir Guyon, just after Acrasia had been dispatched to Gloriana's court and while they were in quest of new adventures.
Seeing a warrior approach, Sir Guyon immediately lowered his lance, but to his surprise was unhorsed by Britomart's invincible spear.

She was about to dismount to despatch her fallen foe with her sword, when the palmer loudly bade his master crave mercy, seeing it was useless to contend against magic weapons.

Hearing this, Sir Guyon surrendered, and he and Prince Arthur humbly offered to escort Britomart, whom they naturally took for a powerful knight.
They had not gone very far when they beheld at a distance a damsel dashing madly through the bushes, casting fearful glances behind her, for she was closely pursued by a grizzly forester.

All their chivalric instincts aroused, Prince Arthur and his companions spurred hotly after the distressed damsel, while Britomart and her nurse calmly rode on, until they came to a castle, at whose gates one knight was desperately fighting against six.

Seeing this, Britomart boldly rode to the rescue of the oppressed knight, and fought beside him to such good purpose that they defeated their assailants.