This book is about a boy named Jason. Jason wakes up on a bus not knowing anything, not even his girlfriend or best friend, but worse, he doesn't remember who he is. He and his girlfriend, Piper, and his best friend Leo soon find out that they are demigods, or a half blood. This means that one of their parents is a greek god or goddess. Soon they find out that Piper's mom is Aphrodite the goddess of love and beauty, Leo's dad is Hephaestus the god of blacksmiths, and Jason's dad is Zeus king of the gods. Soon they realize that Hera, Zeus's goddess wife, has been captured, and the three of them have been chosen by Hera herself to find and free her. They go through many obstacles, like when they met Medea, a evil woman who is immortal and have to escape two dragons and defeat Medea herself. They also catch some storm spirits, and bring them to the weather man who tells the gods what the weather will be like. Finally when they find Hera, it is almost too late, a giant born from Gaea, who was born to destroy Zeus is waking and they must rescue Hera before it is all over. Finally Piper and Leo release a Hera from her cage while Jason is keeping the giant busy, and through a burst of rage, Hera destroys the giant and buys them some time, for a monster of that sort can only be killed by a god or goddess and a half blood. The three still know that they will be up for a fight, but right now they need to find Percy Jackson, who has been sent to the Roman god camp, where Jason is supposed to be, and does not know who he is either, just like Jason. This book was really good to read and I really liked it. I think it relates to a Land of Stories book which is called The Grimm warning.