It's the last epic battle of the Percy Jackson/Heroes of Olympus series and we can't wait for it to come in October!

The cover was released last week and plenty of speculations were made. Everyone assumes that the three demigods show in the cover are Frank (holding a bow and arrow), Hazel (riding her horse) and Jason (jumping off to slay some giants). Not everyone is pleased because Percy and Annabeth can't be seen in it, but plenty argue the fact that Hazel and Frank needed their own book cover while Jason might play the ultimate role of slaying their enemies.

What do you think of the book cover?