Heroes of Olympus: Next Generation

After years of running around, completing quests, and killing homicidal monsters, our heroes had finally managed to settle down. But wishes could only get you that far. Their children have shown signs as legacies, powerful legacies, combining their parents' godly blood into their own. Now, a new danger lurks around the corner and the fate of the world now rests on the next generation of the heroes of Olympus.

Note: I don't own PJO nor HOO. All credits goes to Rick Riordan for these two wonderful series. Credits to the artists of the pictures used in the cover.