Thor's hammer is missing again. The thunder god has a disturbing habit of misplacing his weapon - the mightiest force in the Nine Worlds. But this time the hammer isn't just lost; it has fallen into enemy hands. If Magnus Chase and his friends can't retrieve the hammer quickly, the mortal worlds will be defenseless against an onslaught of giants. Ragnarok will begin.

Penguin presents the audiobook edition of Magnus Chase and the Ship of the Dead by Rick Riordan, read by Michael Crouch. Loki the trickster god is free from his chains. Now he's readying Naglfar, the Ship of the Dead, armed with a host of giants and zombies, to sail against the Norse gods and begin the final battle of Ragnarok. It's up to Magnus Chase and his friends to stop Loki's plans, but to do so they will have to sail across the oceans of Midgard, Jotunheim and Niflheim in a desperate race to reach Naglfar before it's ready to sail on Midsummer's Day.

The stakes have never been higher. If Percy Jackson and Annabeth fail in their quest, there'll be hell on Earth. Literally. Wandering the deadly realm of Tartarus, every step leads them further into danger. And, if by some miracle they do make it to the Doors of Death, there's a legion of bloodthirsty monsters waiting for them. Meanwhile, Hazel and the crew of the Argo II have a choice: to stop a war or save their friends. Whichever road they take one thing is certain - in the Underworld, evil is inescapable.

Carter and Sadie Kane's dad is a brilliant Egyptologist with a secret plan that goes horribly wrong. An explosion shatters the ancient Rosetta stone and unleashes Set, the evil god of chaos. Set imprisons Dr Kane in a golden coffin and Carter and Sadie must run for their lives. To save their dad, they embark on a terrifying quest from Cairo to Paris to the American Southwest and discover the truth about their family’s connection to the House of Life: an Egyptian temple of magic that has existed for thousands of years.

In The Lost Hero, three demigods named Jason, Piper, and Leo made their first visit to Camp Half-Blood, where they inherited a quest.

The fourth incredible adventure in the Percy Jackson series. "Honestly, blowing up another school was the last thing I wanted to do. As the son of a Greek god, I've had my share of near-death disaster. This summer, I didn't choose to battle the cheerleading squad, but when two hissing she-devils with fangs are heading straight for you, what's a half-blood meant to do?"

Carter and Sadie Kane, descendants of the magical House of Life, are in pretty big trouble. Despite their bravest efforts, Apophis, the giant snake of Chaos, is still threatening to plunge the world into eternal darkness. Now the Kanes must do something no magician has ever managed - defeat Apophis himself. No pressure there then. Battling against the forces of Chaos, their only hope is an ancient spell - but the magic has been lost for a millennia. Will they find the serpent’s shadow, or will they be led to their deaths?

The fifth fantastic adventure in the Percy Jackson series is now available to download, complete and unabridged, on audio! The greatest monster of all, the storm giant Typhon, is on the loose, wreaking havoc and destruction across the U.S. - while Kronos's army lays siege to Manhattan. Soon Percy Jackson must make the hardest choice of his life - a choice that will save or destroy the world.

Penguin presents the audiobook edition of The Burning Maze by Rick Riordan, read by Robbie Daymond. I was a god once. Until I was cast out by my father, Zeus. Now I'm an awkward mortal teenager called Lester. My way out? A series of scary and dangerous trials, of course. For my third mission, I must: Journey through the Labyrinth to free an Oracle who speaks only in puzzles. Defeat a vicious and bloodthirsty Roman Emperor - the most vicious of three very vicious and bloodthirsty Roman Emperors. Is that all? No, I've to do everything without any of my godly powers. Wonderful. Looks like I'll be needing all the help I can get. From new friends and old....

Annabeth is terrified. Just when she’s about to be reunited with Percy - after six months of being apart, thanks to Hera - it looks like Camp Jupiter is preparing for war. As Annabeth and her friends Jason, Piper, and Leo fly in on the Argo II, she can’t blame the Roman demigods for thinking the ship is a Greek weapon. With its steaming bronze dragon figurehead, Leo’s fantastical creation doesn’t appear friendly. Annabeth hopes that the sight of their praetor Jason on deck will reassure the Romans.

The third fantasy adventure in the Percy Jackson series is now available to download, complete and unabridged, on audio. It's the last Friday before the winter holidays but Percy Jackson isn't at school: he's battling the fearsome Manticore (half human, half lion), which in itself isn't ideal . . . but with Annabeth missing and the goddess of the hunt held captive, things get a whole lot more serious . . . Greek mythology relocated to modern-day America.

I look like a normal kid. Only there's a difference. Poseidon, God of the Sea is my dad. Which sounds cool, but actually means there is usually someone (or something), somewhere, trying to kill me. Now I live at Camp Half-Blood, with other kids like me. But Camp Half-Blood is a bit different to most summer camps. Instead of toasting marshmallows and singing campfire songs, we battle giant cannibals at dodgeball. This time, we're under attack and I need to get my hands on the Golden Fleece or we'll be invaded by monsters. Big ones.

When young magicians Carter and Sadie Kane learned how to follow the path of the Ancient Egyptian gods, they knew they would have to play an important role in restoring Ma’at (order) to the world. What they didn’t know is how chaotic the world would become. The Chaos snake Apophis is loose and threatening to destroy the Earth in three days’ time. The magicians are divided. The gods are disappearing, and those who remain are weak. What are a couple of teenagers and a handful of young trainees to do?

Penguin presents the unabridged, downloadable audiobook edition of The Hidden Oracle: The Trials of Apollo, Book One, by Rick Riordan, read by Robbie Daymond. How do you punish an immortal? By making him human. After angering his father, Zeus, the god Apollo is cast down from Olympus. Weak and disorientated, he lands in New York City as a regular teenage boy.

The former God Apollo is having a pretty rough time of it. Well, for one thing, he's called Lester. But being an awkward mortal teenager is the least of his worries. Though he and his friends (some of them) have emerged from the Burning Maze, they still have a triumvirate to defeat, oracles to rescue and prophecies to decipher so that the world may be saved, and Lester can become Apollo once again. But right now, Caligula is sailing to San Francisco to deal with Camp Jupiter personally, and they have to get their first. Or risk its destruction.....