The young aeronaut Spyfi became a student of the famous Captain Morton - the greatest among the explorers of the heavens. So he became involved in a deadly feud between two famous aces, where the stake is the freedom of his native lands, which the empire of fanatics who worship a mechanical god is eager to subjugate. The fate of the world can be decided by the legacy of a mysterious race: the giant ship “Sorrow” hidden in unknown distances. The crew of the “Scarlet Blade” awaits the endless expanses of the skies and air battles, intrigue and cunning enemies. But is the threat of the Mechanical Empire so great compared to that fraught with human ambitions and fears? Editor's comment: Who will save the world, devoured by a monstrous surf? When the last hope evaporates like marshmallow sea foam, noble aces come to the fore, in whose hands is the fate of today. But are the impeccable actions and admirable deeds of heroes so transparent? Or is there a dark abyss of more insidious plans hidden behind the good intention?