Yspaddaden the Giant

 next day the party went to the castle and saw Yspaddaden. He put them off with various excuses, and as they left flung after them a poisoned dart. Bedwyr caught it and flung it back, wounding him in the knee, and Yspappden cursed him in a language of extraordinary vigour; the words seem to crackle and spit like flame. thrice over this happened, and then at last Yspaddaden declared what must be done to win Olwen.