"My power has been mighty in the aid of this hero and I will try it still farther. If my sorcery avails me anything, the life of Jason's father shall be lengthened without the cost of the sacrifice of any of the youth's own years." So, when the moon was next in the full, Medea made her way silently and alone out of the palace when it was the dead of night and all creatures slept. She moved swiftly along the fields and groves murmuring strange words as she went, and addressing an incantation to the moon and to the stars. There was a goddess, named Hecate, who was supposed to represent the darkness and terror of the night as Diana represented its beauties. At dusk she began her wandering over the earth, seen only by dogs who howled at her approach. Medea followed Hecate, imploring her help, and she also called to Tellus, that goddess of the earth by whose power those herbs that could be brewed for enchantment were grown. And Medea invoked the aid also of the gods of the woods and caverns, of valleys and mountains, of rivers and lakes, and of the winds and vapors. As Medea took her enchanted way through the night, the stars shone with an unusual brilliancy and presently a chariot, drawn by flying serpents descended to meet her through the air. Medea ascended in it and made her way to distant regions where the most powerful plants grew and brought them back before the day's first light for her uses. Nine nights Medea rode away in the chariot of the flying serpents, and in all that time she did not go within the doors of her palace or shelter herself under any roof, or speak to a human being. Hebe was the goddess of youth and one of the cup bearers of the gods. When Medea had gathered the herbs which she needed for her potion, she built a fire in front of a nearby temple to Hebe and over the fire she hung a very wide and deep caldron. In this caldron she mixed the herbs with seeds and flowers that gave out a bitter juice, stones from the far distant east, and sands from the encircling shore of the ocean. There were other ingredients, also, in this brew; a screech owl's head and wings, hoar frost gathered by moonlight, fragments of the shells of tortoises who of all creatures are the most long lived, and the head and beak of a crow, the birds that outlives nine generations of men. Medea boiled all these ingredients together to get them ready for the deed she proposed to do, stirring them with a dried branch from an olive tree. And, strange to say, the branch did not burn, but when the sorceress lifted it out it instantly turned as green as it had been in the spring, and in a short time it was covered with leaves and a luxuriant growth of olives. The potion in the caldron bubbled and simmered and sometimes rose so high as it boiled that it spilled over the edge and down on the ground. But wherever the drops touched the earth, new green grass shot up and there were flowers as bright and fragrant as the most prized blossoms of the May.