Percy Jackson and the Olympians. Book Two: The Sea of Monsters (Uziel Beltrán)

Reading Control 1

Title: Percy Jackson and the Olympians. Book Two: The Sea of Monsters (2006)
Author: Rick Riordan
Genre: Fantasy
Chapters: 20
Setting: The story is set in the Meriwether College Prep. and the Camp Half-Blood in Manhattan, US in the XXI century.
Characters: 
Percy Jackson: a 12-year-old kid with attention deficit hyperactivity disorder (ADHD) and dyslexia. He is a half-blood (semigod) son of Poseidon.
Grover: Percy's best friend in Half-Blood Camp.
Tyson: a six-foot-three kid who is Percy Jackson's best friend in school. He is not very clever, but he is loyal to his friends.
Annabeth: One of Percy's best friends.

Why have I chosen this book?
I am really fond of the science-fiction genre in movies and books, so I have seen the movies of Percy Jackson's saga. Therefore, I consider that it will be really interesting to have a look at the book in order to get to know more about these stories. In addition, I wanted to read a book that challenges me regarding vocabulary. In order to do so, I did a kind of skimming of the pages, and I consider that the required level of English to read it is similar to mine. 

Summary from Chapters 1 to 4

The story starts with Percy Jackson having a bad dream about his friend, Grover, who was being chased by some kind of giant. Fortunately, Percy realized he was just dreaming. Anyways, he went to school and met his best and only friend Tyson. They had to play dodgeball against Sloan and company; they were bullies who, without apparent reason, used to pick on Percy and Tyson too much. However, these were not just bullies; but giants whose goal was to kill Jackson. As Tyson was quite big and strong, he managed to defend Percy from these monsters. Unfortunately, one of the giants knocked Tyson down and when he was about to kill Percy, a blade run through it with a sword; it was Annabeth, Jackson's friend of the camp of Half-Bloods. She looked rushed, like if she was chased by someone or something. Therefore,there was no time to lose; they asked for a taxi so they could go to the Half-.Blood camp. Percy was really sure that the cab would not get to the camp; it was really far from where they were. What was very striking for Jackson is that, after getting off the car half way, Anabeth dedided to threw a magical coin. Suddenly, a creepy and old vehicle stood out of the road. It was driven by three witches who called themselves The Gray Sisters; they had bony limbs, and did not have eyes nor teeth. After a lengthy negotiation, the old women accepted to take them to the camp. 
When they arrived in the camp, the place were under attack by two giant bronze bulls. Fortunately, the youngters managed to take them out. It was here when Percy realized Tyson is a Cyclops. The guys discovered why the place had been vulnerable; the magical boarders were failing because Thalia's tree was dying, it was poisoned.