The Blood of Olympus is the fifth book in the bestselling Heroes of Olympus series - set in the high-octane world of Percy Jackson.

Though the Greek and Roman crew members of the Argo II have made progress in  their many quests, they still seem no closer to defeating the earth mother,  Gaea. Her giants have risen - all of them - and they're stronger than ever. 

They must be stopped before the Feast of Spes, when Gaea plans to have two demigods  sacrificed in Athens. She needs their blood -the blood of Olympus - in order to  wake. The demigods are having more frequent visions of a terrible battle at Camp  Half-Blood. The Roman legion from Camp Jupiter, led by Octavian, is almost  within striking distance. Though it is tempting to take the Athena Parthenos to  Athens to use as a secret weapon, the friends know that the huge statue belongs  back on Long Island, where it might be able to stop a war between the two camps.  The Athena Parthenos will go west; the Argo II will go east.

The gods, still  suffering from multiple personality disorder, are useless. How can a handful of  young demigods hope to persevere against Gaea's army of powerful giants? As  dangerous as it is to head to Athens, they have no other option. They have  sacrificed too much already. And if Gaea wakes, it is game over...

        Rick Riordan has now sold an incredible 55 million copies of his books worldwide

'A cracking read' - Sunday Express

'Explosive' - Big Issue

'Action-packed' - Telegraph