Could you help me to correct this? He travelled for 15 days and 15 nights until arrive to the old mountains. When he reached the top, he saw an old man that was singing a sweet song. The old man said to Jon: I know why you have come for, you need this! The old man showed an old harp that seemed be playing by itself. -What do I need to get it? Asked Jon, - Just give me that sword. Jon turned around and saw a sword embedded in a big rock. Only a true knight heart can take it out. That mission seemed be impossible to Jon because he actually wasn’t a knight. He just was a simple plebeian. The old man said, - try it, you don’t have nothing to lose! Decided, Jon took the pommel of the sword and pull hard. Suddenly, a beam of light down on the sword and Jon couldn’t see anything. Then Jon realised that the sword where in his hands. The old man said: the harp is yours and the sword too, use the harp as a weapon and the sword as a protection. Jon couldn’t believe his feat. While he was approaching to the kingdom, he saw the big dragon was about to attack a village. Jon took out the harp and it started playing by itself. From one moment to the next, the big dragon was lying on the grass in a deep sleep. People surprised, enchained the dragon and sent it back to the castle. The queen, after hearing the news, wanted to meet with the brave knight. Jon was introduced with the queen and immediately he fell in love of her. However, Jon didn’t want to get marry with her without love. So, Jon proposed to teach her how to train the dragons, the queen accepted. One year later, the dragons were as tamed that the queen could ride on them without risk. Jon and the queen professed their love each other and months after, they got married and lived happy forever.