Very soon Jack set off in search of new adventures. On the third day of his travel he came to a wide forest. Hardly had he entered it when he heard dreadful shrieks and cries, and soon he saw a monstrous giant dragging along by the hair of their heads a handsome knight and a beautiful lady. Their tears and cries melted Jack's heart. He alighted from his horse, and put on his invisible coat, and immediately attacked the giant. He could not reach up to the giant's body; so, taking a mighty blow, he cut off both the monster's legs just below the garter, so that he fell full length upon the ground. Then Jack set his foot upon his neck and plunged his sword into the giant's body.
The knight and the lady, overjoyed, begged Jack to come to their house to refresh himself after this fight; but Jack, hearing that the giant had a brother who was more cruel and wicked even than himself, would not rest until he had also destroyed him.
Soon he came in sight of the cavern where the giants lived. There was the other giant sitting on a huge block of timber, with a knotted iron club lying by his side. Jack, in his coat of darkness, was quite invisible. He drew close up to the giant and struck a blow at his head with his sword of sharpness; but he missed his aim and only cut off his nose. The giant roared with pain, and his roars were like claps of thunder. He took up his iron club and began to lay about him, but not being able to see Jack, he could not hit him; for Jack slipped nimbly behind, and jumping upon the block of wood, stabbed the giant in the back; and after a few howls, the monster dropped down dead.
Having thus killed the two monsters Jack entered the cave to search for the treasure. One room contained a great boiling cauldron and a dining table, where the giants feasted. Another part of the cave was barred with iron and was full of miserable men and women whom the giants had imprisoned. Jack set them all free and divided the treasure among them.
Jack cut off the giant's head, and sent it with the head of his brother to the Court of King Arthur; then he returned to the house of the knight and his lady.
He was received with the greatest joy; and the knight gave a grand feast in his honor. When all the company was gathered together, the knight presented Jack with a ring, on which was engraved the picture of the giant dragging the knight and the lady by the hair, with this motto round it—
"Behold, in dire distress were we,
Under a giant's fierce command,
But gained our lives and liberty
From valiant Jack's victorious hand."
But while the merriment was at its height, a herald rushed into the room and told the company that Thundel, a savage giant with two heads, had heard of the death of his two kinsmen, and was come to take his revenge on Jack. The guests trembled with terror and fright; but Jack only drew his sword and said, "Let him come!"