Aquaman Annual (1995-) #2

The Legends of the Dead Earth Annuals continue. Two storytellers challenge each other to tell the true legend of Aquaman: in one, a king named Aquaman, on a desert world, doles out water by royal decree; in the other, a dying planet's seas are terrorized by a floating city called Poseidonis, ruled by Aquaman. Which is true? Which is false? And what is the secret of the storytellers themselves?