It is Chapter Thirteen of the book The Last Olympian when Percy dreams of Luke, Thalia and Annabeth going to see Luke's mother.
The chapter title is 'A Titan gives me a birthday present' and the part where Percy dreams of Luke and Thalia and Annabeth visiting Luke's mom is on page 223-226.
In which book? SPOILER! After Sea of Monsters ~School with annabeth After Titan's Curse ~With Hunters After The Sword of Hades ~With Hunters (After Hamburgers with Percy) After Last Olympian ~With Hunters (After Hamburgers w/ percy/annabeth) ya pretty lame
The Hunters.
It is Luke & Thalia. It says so in the books.-
Grover lead Annabeth, Luke, and Thalia to Camp Half-Blood. Thalia died on Half-Blood Hill and he feels like it was his fault.
Thalia lived with Annabeth and Luke on the run before they got to Camp HalfBlood, and before that she lived with her mom.
In which book? SPOILER! After Sea of Monsters ~School with annabeth After Titan's Curse ~With Hunters After The Sword of Hades ~With Hunters (After Hamburgers with Percy) After Last Olympian ~With Hunters (After Hamburgers w/ percy/annabeth) ya pretty lame
The Hunters.
Luke, Thalia, and Annabeth were trapped in a Cyclops's lair, and the Cyclops lured them by mimicking their voices. Annabeth managed to stab the Cyclops in the foot and cut Thalia free, and together, the three were able to escape. However, in the time it took them to defeat the Cyclops, the other monsters that had been chasing them caught up, and were able to kill Thalia on Half Blood Hill.
It is Luke & Thalia. It says so in the books.-
Grover lead Annabeth, Luke, and Thalia to Camp Half-Blood. Thalia died on Half-Blood Hill and he feels like it was his fault.
Probably about the same height as Percy and Annabeth
Thalia Grace from Percy Jackson and the Olympian's middle name has never been revealed.
Thalia lived with Annabeth and Luke on the run before they got to Camp HalfBlood, and before that she lived with her mom.
she is the same age as Percy and Annabeth
Thalia, Percy, Annabeth and Grover
Annabeth, Grover, Thalia, Tyson, Nico and Rachel.
The answer isn't specifically mentioned in the books, but it is implied that Thalia and Luke took care of Annabeth because she was a demigod, like them, and was too young to survive long on her own.