Percy saves him
In the Odyssey Polyphemus had no wife. In Percy Jackson (Sea of Monsters) he wanted to marry Grover (or Clarissa) but did not succeed.
All we know about Grover's parents is that his father was a satyr who went searching for Pan and never came back. It is possible that his father died on Polyphemus's island, since it is revealed in the second book that the nature magic of the golden fleece smelled like the great god Pan, and led many searchers astray.
Grover goes missing on his quest for Pan, Camp Half Blood's magical borders are dieing, and Thalia's tree is poisoned.
Odysseus tricked Polythemus by telling him that his name was "Nohbdy." When Polythemus shouted for help, he yelled "Help, NOHBDY has blinded me." When the other cyclopes heard that NOBODY had hurt him, they laughed and went back to their own business.
Chapter 15 is about tricking the cyclops Polyphemus and trying to escape with the Golden Fleece.
In the Odyssey Polyphemus had no wife. In Percy Jackson (Sea of Monsters) he wanted to marry Grover (or Clarissa) but did not succeed.
They escape the Cyclops island and save Grover.
Odysseus blinded Polyphemus so that him and his men could escape.
Polyphemus' island was a lush us island rich with sheep and goats.
Oddesy defeated Polyphemus by stabbing him in the eye and blinding him while his friends and himself could escape.
the heroes needed to get the golden fleece and save grover from Polyphemus, the cyclops who has been eating all of the satyrs that come to island in search of Pan
poking out his eye.
The cave that Odysseus and his men found when they landed on the Island of the Cyclopes belongs to Polyphemus. Odysseus decided to stay in the cave until its owner returned. When Polyphemus returned and saw the intruders, he ate Odysseus' men.
Polyphemus was blinded by Odysseus and his men during their escape from the cyclops' cave. They heated a wooden stake and drove it into Polyphemus' single eye while he was asleep, blinding him and allowing the group to escape.
The island of Thrinacia.
Odysseus and his men escape Polyphemus' cave by cleverly deceiving the Cyclops. After blinding him with a sharpened wooden stake while he is drunk, they hide underneath the sheep as Polyphemus lets them out to graze. As they make their escape, Odysseus reveals his true identity to the blinded giant, provoking Polyphemus to curse him, which leads to further troubles for Odysseus on his journey home.
Only 6 of the original 12 men return with Odysseus from Polyphemus' cave.