O Filho De Netuno by Rick Riordan

In this thrilling continuation of the Heroes of Olympus series, the story follows Percy Jackson, who finds himself at Camp Jupiter, the Roman counterpart to Camp Half-Blood, with no memory of his past. As he navigates this new world, Percy teams up with Hazel Levesque and Frank Zhang, two demigods with their own unique challenges, to embark on a perilous quest to free the god of death, Thanatos, from captivity in Alaska. Along the way, they face formidable enemies, uncover secrets about their identities, and strengthen their bonds of friendship, all while racing against time to prevent a catastrophic war between the Roman and Greek demigods.