Rick Riordan
15 titles on Obiaks Books.
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The Heroes of Olympus, Book Five: The Blood of Olympus (Unabridged)
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The Trials of Apollo, Book One: The Hidden Oracle (Unabridged)
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The Sea of Monsters: Percy Jackson and the Olympians: Book 2 (Unabridged)
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The Lightning Thief: Percy Jackson and the Olympians: Book 1 (Unabridged)
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The Battle of the Labyrinth: Percy Jackson and the Olympians, Book 4 (Unabridged)
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The Last Olympian: Percy Jackson and the Olympians: Book 5 (Unabridged)
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The Lost Hero
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Percy Jackson and the Olympians: The Chalice of the Gods
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The Titan's Curse: Percy Jackson and the Olympians: Book 3 (Unabridged)
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The Heroes of Olympus, Book Four: The House of Hades (Unabridged)
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Magnus Chase and the Gods of Asgard, Book Two: The Hammer of Thor (Unabridged)
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Percy Jackson and the Olympians: Wrath of the Triple Goddess
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The Heroes of Olympus, Book Three: The Mark of Athena (Unabridged)
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The Trials of Apollo, Book Two: The Dark Prophecy (Unabridged)
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