I'm guessing it's Percy himself because he's been kidnapped and has been missing for three days. You can read the first two chapters by clicking on the link below and typing in the password: newhero.
No. Percy Jackson will not be in the first book (The Lost Hero) but he will be in the second book and through the rest of the series. I've read the book and Percy Jackson is not in The Lost Hero. However, Percy Jackson will be in The Heroes of Olympus series. In book two (Heroes of Olympus, The Son of Neptune) Percy Jackson will be on of the main characters as he was in the last series.
The other series directly related to The Lost Hero is the Percy Jackson Series.
The Lost Hero is the next series in the "Camp Half-Blood" book series. It does not revolve entirely around Percy, Annabeth, and Grover this time, though.
There is no sixth book but there is another series that goes along with the Percy Jackson series called the lost hero
no not yet they are doing it after the Percy Jackson series
That book is part of the series "The Heroes of Olympus", which basically follows after the series "Percy Jackson and the Olympians".
In the new series ( The Lost hero) he has a son called Jason.
Actually he has Percy Jackson series and the Kane chronicles. The lost hero which is out now is a sort of sequel to the Percy jalson series. No one can get enough of Percy!
there acually is no new series it is going to continue talking about Percy in the lost hero
no sorry i wish there was but there is the Kane Chronicles and also the lost hero by Rick Riordan
not the Percy Jackson series itself but their will be another called hero's of Olympus the first one is lost hero and the second is the son of Neptune.
there is only 5, but there are more books like the lost hero,which is basically like Percy Jackson series, and the lost here has a sequel called the son of neptune, they both are by Rick Riordan