“Brain Juice was a recipe invented by Eve years before, when she had had to stay awake all day to look after Caddy and Indigo and Saffron, and all night to take care of the fragile and impermanent baby Rose. It was Coca-Cola with a great deal of instant coffee stirred into it. It was black and frothy and gritty, and it tasted like a primitive, medieval poison, but it banished sleep like magic.”
