Nico was around 10 or 12ish.
Nico does NOT die
Nico is about four years younger than Percy, so he would be around 12.
He convinces Hades to help fight in the War.
Percy Annabeth Nico and more... Read the book, it's good!
we aren't gonna tell you (unless you have read the book but forgot) it will spoil it
19
in the first book he appeared in he was 10 because he was stuck in the lotus casino with his sister bianca and should have been 80, but he was 10 when he was put there, so he stayed that age. in the last olympian he is 12.
"With great power, comes great need to take a nap. Wake me up later." - Nico The Last Olympian (Book Five).
chapter 8 in The Last Olympian is about when Percy takes a dip into the river Styx. There he earns his Achilles spot. He also has a vision in which Annabeth is pulling him out of the river. He had to think of one thing to keep him alive. Obviously, Percy thought of Annabeth. A TEN year old is telling you this!!!!!!!!
Around 15 or 16
The Last Olympian has 381 pages.
There is no sequel to The Last Olympian