Percy Jackson, Son of Poseidon. That is how the demigods knew him. Back in 1914, he was known as Sgt. Perseus Konstans Jackson of the British 15th Brigade. Follow Percy's journey in "The War To End All Wars", his 'death' and waking up as a 10-year-old boy in the year 2004, and his journey as the adopted son of his own grandniece as he defends Olympus and his friends from the Titans