Aiming for the top! Exploring mysteries in the mountains! A group of Adventures disappears right after reporting that they found gold in the Himalayas! The World Adventure Union sends a rescue mission, which includes the No.4 Adventurer, Azure Princess, who unexpectedly provides a clue to Lulu's mysterious background! However, the rescue mission is attacked by snow apes! Will they meet the same fate as the vanished adventures?

Aiming for the top! Seeking the legendary dragon! After rescuing Lulu from her sister's smothering affections, Alex, continues to journey through China. Along the way, they witness the No.1 Adventurer, Akhator, battling with the mythical Qilin. However, Alex is more interested in a recently discovered archaeological site. Is it the nest of the Qilin - or of a creature unknown to humanity?

Aiming for the top! Encountering El Dorado! Now that the Sky Demon has seized one of the mysterious orbs, he has become even stronger! To prevent the remaining two orbs from falling into the villain's hands, Alex teams up with the Ancient Mariner again in the Pacific Ocean. There, they encounter old foes - and unexpected friends!

Aiming for the top! Mystery in Mexico! Alex succeeds in becoming a host for the last Star Seed - but this also attracts the attention of the evil Sky Demon, who is seeking the power of all the Star Seeds for himself! To keep Alex safe, the world's strongest Adventurers go all out against the Sky Demon, but pay a heavy price... Angry at being thwarted, the Sky Demon vows to destroy all life on Earth - and the Earth itself!

Aiming for the top! Uncovering the mystery of the forbidden orb! The Ancient Mariner fights desperately to keep the Sky Demon at bay - but will the marine monarch's mightiest efforts be enough to keep the villain from seizing even more power? Meanwhile, Alex and his allies get a major boost, as the world's most legendary Adventurers prepare to return to duty in full force!

"An action-packed page turner with heart!"--Dav Pilkey, author of DOG MAN For five books, Razorwark has chased Hilo through the Universe. Now the chase is over. Find out how the epic war between Razorwark and Hilo ends and get ready to start the next adventure with the New York Times bestselling graphic novel series that kids and critics love! Being a hero isn't easy. But Hilo had no idea it would be this hard. Hilo came to earth because he was running from Razorwark. But he's done running. Razorwark has come to earth. And the time has come for one final face to face showdown. What happens will decide the fate of the robot world . . . and Hilo's future. The sacrifice will be great. But with Izzy's help, Hilo finally knows what he has to do. Because THIS is how all the pieces fit. Here's what people (and robots!) are saying about Hilo! "More giant robotic ants and people going 'Aaaah!' than in the complete works of Jane Austen"--Neil Gaiman, bestselling author "Every kid would love a pal like HILO, and every kid will love this book!" --Lincoln Peirce, bestselling author of the Big Nate series "A perfect book for any kid who ever needed a friend and then had one with superpowers fall from space." --Seth Meyers, actor, comedian and writer "A story that can be enjoyed by the entire family."--The New York Times "A Total BLAST." --Miami Herald * "A wholeheartedly weird and wonderful tale of friendship, acceptance, and robots."--Kirkus Reviews, Starred Review * "A must-have."--School Library Journal, Starred Review

Aiming for the top! Diving into the mystery of the mermaids! Alex and Lulu travel to the Pacific Ocean to search for the legendary mermaids, only to encounter - a ghost ship?! Not only that, they run into the famous ocean adventurer, "Ancient Mariner"! Is he friend or foe?

Aiming for the top! Surviving the savage seas! Alex's grandfather was once the No.1 Adventurer known as the "Phamtom Spider". On a mission for the World Adventurer Union, a much younger Alex accompanies his grandfather to the Malay Archipelago to look for a treasure that is rumoured to control the ocean's currents. But this will take them into the territory of the infamous "Shark Riders" pirate crew... A look back at Alex's very first adventure!

Aiming for the top! Uncovering the mystery of the Minotaur! Searching for the clues to break Lulu's curse, she and Alex travel to the island of Crete, home of the legendary half-man half-bull Minotaur... but will they find the truth behind the legend?