“The Heroes of Olympus, Book Three: The Mark of Athena” continues Rick Riordan’s enthralling mythological saga, seamlessly blending Greek and Roman mythology in an epic tale of adventure and heroism. The book follows the journey of seven demigods from both camps—Camp Half-Blood and Camp Jupiter—as they embark on a perilous quest to prevent the impending catastrophe foretold in the Prophecy of Seven. Annabeth Chase takes center stage in this installment, embodying the titular “Mark of Athena.” As the demigods face formidable challenges, Riordan skillfully intertwines humor, friendship, and the weighty responsibilities of their destinies, creating a narrative that captivates readers of all ages.