The Heroes of Olympus series by Rick Riordan is a thrilling adventure that will keep you on the edge of your seat! With fresh and exciting new cover art by graphic novelist Nilah Magruder, this fourth book in the series promises to be just as captivating as the previous ones.

Follow Percy Jackson and his friends as they navigate through the depths of Tartarus, fighting Gaea's forces and trying to find a way out.

With stakes higher than ever before, this adventure is not to be missed! Don't miss out on the opportunity to seal the Doors of Death and prevent the giants from raising Gaea.

Get your copy today and join the fight against evil!