Captain Rockhopper sails the seven seas on the Migrator with his pet puffle Yarr. Rockhopper arrives on the Migrator, and lets the rest aboard. The twin "Universal Migrator" albums were released in 2000. Contrary to barbeled dragonfishes in general, it is not a vertical migrator. Four years after Universal Migrator, Lucassen released Ayreon's sixth album, "The Human Equation".