Nathan and Rodrick Story

So these two boys are Nathan (the left), and Rodrick (the right), are on a vacation in Ireland when they are transported to the mythical fairie underworld. While hiking they discover a giant rock with a large hole going right through it. Now ancient fairy lore states that a stone with a hole in it allows you to see into the fairy world. The guys, knowing this, thinking it would be funny to crawl through the rock and see what happens. Much to there suprise they actually crawl into the realm of fairie. Once there they try to leave but the rock is destroyed by a large explosion. The boys run, hearing a loud sound behind them, they attempt to look back, but a voice screaming not to look back, they keep running and fall in a hole, which close behind them. After awaking they are informed by a tall, antlered man that they are in the palace of Oberon, king of the fairies. He then reveales that he himself is Oberon. The boys, a bit shocked ask what was chasing them, and are told it was a gorgon, one of three in fact. Oberon then tells the boys that he is charging them with defeating the gorgons, and by doing so he will allow them to go home. He then gives the guys four mythical weapons. Nathan wields the legendary "Sword in the Stone" and a pair of magical gauntlets. Rodick wields the sword Excalibur and the hammer of Thor,  Mjölnir. Oberon tells the boys the weapons powers will allow them to look at the monsters and tells them where to find them. After fully realizing the situation they are in, the boys start walking only to meet a "mysterious stranger", she tells the guys why Oberon wants the gorgons destroyed. It turns out the gorgons cursed his wife, Titania queen of the fairies, with slow petrification. Instead of the instant "turning to stone" that most of the gorgons use to kill their enemies, Titania is slowy being turned to stone. The reason for this, the stranger says, is because Medusa, the queen of the gorgons, is jealous of Titania's immortality. The stranger also reveals that the gorgons are searching for a way to make Medusa immortal, since she, unlike her sisters Stheno and Euryale, is merely mortal. After stating this information, the stranger runs off. Now Nathan and Rodrick know why they must defeat the gorgons, the only question left is, how?