From Morte D’Arthur by Sir Thomas Malory And so they met as their pointment was and were agreed and accorded thoroughly. And wine was fetched and they drank together. Right so came an adder out of a little heathbush, and it stung a knight in the foot. And so when the knight felt him so stung, he looked down and saw the adder. And anon he drew his sword to slay the adder, and thought none other harm. And when the host on both parties saw that sword drawn, then they blew beams, trumpets, horns, and shouted grimly. And so both hosts dressed them together. And King Arthur took his horse and said, “Alas, this un-happy day!” and so rode to his party, and Sir Mordred in like wise.
Which statement best summarizes the main idea of this passage?