On planet Perdide, an attack of giant hornets leaves Piel – a young boy – alone in a wrecked car with his dying father. A mayday message reaches their friend Jaffar, an adventurer travelling through space. On board Jaffar’s shuttle are the renegade Prince Matton, his fiancée, and Silbad who knows the planet Perdide well. Thus begins an incredible race across space to save Piel.
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A man named Claude is driving a vehicle across the planet Perdide. He sends a message to his friend Jaffar, telling him that his wife Annie was killed by indigenous monster hornets. After a crash wrecks his vehicle and he cannot extricate himself, he lets his son Piel down from the wreckage and hands him an egg-shaped interstellar transceiver, telling him that it is named "Mike" and will talk to him, and to do whatever Mike tells him to do. After Claude sends his son to the Dolongs, a nearby coral-like forest which repulses the hornets, the crashed vehicle explodes.
On his spaceship Double Triangle 22, Jaffar receives Claude's last message. Before heading for Perdide, he decides to seek out his friend Silbad, as Silbad has experience in living on Perdide. Jaffar's passengers, Prince Matton and his sister, Princess Belle, have been deposed from their planet; they bring with them a treasure the Prince took along to fund his restoration. Matton is not at all happy about being diverted and makes no attempt to hide his displeasure. At the same time, a relationship begins to blossom between Jaffar and Belle.
Jaffar, Silbad, Matton and Belle begin communicating with Piel to give him advice. Whilst on Silbad's planet, they witness the metamorphosis of a water lily-like organism into dozens of empathic, sentient, primary-colored homunculi, two of whom, named Yula and Jad, stow away on Jaffar's spacecraft seeking adventure. Unknown to the Prince, Yula and Jad play with and then dispose of the treasure via the airlock. When Matton speaks with Piel, he nearly convinces the trusting boy to drown himself in a lake, but is discovered by Belle, who stuns him and talks Piel to safety.
Jaffar plans to use the gravitational pull of the Blue Comet to reach Perdide. In order to rendezvous with it, Jaffar pilots his craft to the planet Gamma 10. Prince Matton escapes in a shuttlecraft to the surface of Gamma 10, which is inhabited by faceless, identical white angels. They capture both Matton and Jaffar, who followed in a space lifeboat, and intend to throw them into the living, thinking amorphous being which controls the planet. Although they are unable to rescue Jaffar, Yula and Jad are able to forewarn him: As they contact the controlling being, its victims get dominated by it, lose all sense of individuality and become one of the faceless angels. They instruct Jaffar to resist being assimilated by exuding all the hate and contempt he can muster. When Jaffar tells the Prince about this, Matton leaps into the being and sacrifices himself, not only destroying the creature, but also causing the angels to revert to their original forms.
Rescued by Yula and Jad, the former captives are taken onboard the Double Triangle 22. Meanwhile, Piel befriends a local creature, a hyponiterix, which accompanies him. Soon afterwards, a patrol cruiser of the Interplanetary Reform catches up with the Double Triangle 22, pursuing the fleeing royals and the treasure Matton stole. Jaffar considers that the rescued spacefarers from Gamma 10 should hijack the Reform cruiser and take it for themselves. During the discussion of this plan, one of the rescued from Gamma 10, Onyx the Digeed of Gnaz, is revealed to be able to change his shape to resemble any object. As a consequence, Onyx will impersonate the missing treasure, allowing the escapees to access the Reformist ship.
Jaffar's vessel is boarded, and as he presents the "captured" pirates and the fake treasure to the Reform commander, none of the Double Triangle 22's crew is able to converse with Piel, who begins to wander without supervision. The crew attempts to contact him, but Piel has lost his transceiver and his hyponiterix companion inside a cave filled with predatory tentacles. Despondent, Piel wanders back to the lakeside, which takes him out of the forest, and he is attacked by the hornets which killed his parents. The Double Triangle 22 closes on her destination, but the planet is be
