Achilles Chiorri, known as Aki, believes he is a normal twelve year-old like everyone else; that is, until he discovers he has the power to travel to the distant worlds of the Parallel Crystals. With the help of a mighty artifact, the Sphere of Time, Aki goes on his first great journey and discovers that the gods and creatures he thought were only myths, are actually alive and all too real. Aki, together with an extraordinary girl and a special cat, is led by an elf of the Light as he travels through the realms of the Crystal of Yggdrasil, where he will encounter amazing creatures. To be able to return home, Aki must embark on a dangerous mission that leads to an exciting series of events full of twists and turns.

Lilith's dreams are becoming increasingly powerful and horrifying, while the Sphere of Time has turned a frightful blood red color... It all seems to indicate that something serious and unexpected is happening on the parallel crystals. Not even the Master of Knowledge has an explanation for what is going on. So, Aki and Lilith have no choice but to set off on another exciting mission. The Sphere beams them to the Crystal of Gaea, where Greek mythology comes to life. To discover what is happening, they must overcome gods and scary creatures, and face challenges that put their very lives at risk.

Mysterious, disturbing signals from the crystals. Devastating, inexplicable catastrophes on Earth. Are the two connected? Meanwhile, a new and dangerous adventure awaits Aki as he goes on a backward journey to Peru to free Emilio and the Master of Knowledge, Pioquinto Conocedor, from the clutches of the evil Draven Hatcher. A mission full of peril that takes Aki among the Roman gods on the Crystal of Rea Silvia. But to make things even more complicated, Aki finds himself involved in a trial involving two Roman gods accused of nefarious deeds.

On the last day of his beach vacation, Aki receives a mysterious text from Lilith. When he returns to Pieve Olimpia, he discovers that Lilith and her entire family seem to have vanished into thin air. Sick with worry for his friend, Aki rushes off to find Mr. Filippotti, who tells him that Lilith has gone to the parallel crystal called Atum, inhabited by the gods and mythological creatures of Ancient Egypt. It turns out that one of Lilith's recurring dreams had revealed a terrible threat is hanging over the ancient and powerful talisman known as the Eye of Horus. Aki decides to go after his friend. The Sphere of Time beams him to the Crystal of Atum right in the middle of a ferocious war among gods. Only after a series of dangerous and frightening adventures Aki will finally find Lilith and discover what is threatening the Eye of Horus.

Following his first journey to the Crystal of Yggdrasil, Aki is shaken and confused. He still can't believe that the gods and creatures he thought existed only in mythology are actually real and living. But he will have to get used to the idea very soon, because this is just the beginning of his new life as an heir to the Superior Beings. In fact, Aki finds out that a very close friend, and the last person he would have expected, is an heir like himself. The young girl has the gift of oneiromancy, a gift that allows her to see the future through dreams, and she is certain that something very troubling is about to happen. With the help of the Sphere of Time, the two friends will embark on a risky mission on the Crystal of Nammu. Accompanied by the loyal cat, Timoteo, and guided by a powerful demigod, the journey will be rife with perils from the Gallu demons to the goddess Ereshkigal, until the truth is finally revealed before their very eyes.

Strange phenomena, sinister manifestations... It's hard to believe what is happening in Pieve Olimpia and there seems to be only one explanation:gods and creatures have returned from the parallel crystals to the primary world, where they seem determined to remain and restore the ancient splendors of past civilizations. But by using their supernatural powers in the heated battles to conquer one another, the gods risk destroying the planet. Aki and Lilith face an impossible mission as the world's only hope for survival. A series of twists and turns in an escalation of epic battles among mythological monsters will leave you breathless.

Aki's world is forever altered when he stumbles upon an extraordinary gift—the ability to traverse distant realms, a power bestowed upon him by the mysterious Sphere of Time. Fueled by this newfound talent, Aki embarks on an odyssey that unravels the boundaries between reality and myth, where gods and creatures once dismissed as legends come to life, challenging the very fabric of his existence. It is the story of a young boy’s resilience in his fight against unimaginable odds, as he is transported into a world where magic, mystery, and courage all converge in a quest to conquer the secrets that lie within the realm of the Parallel Crystals.