strength. The only way to survive in the Twilight is to slowly feed it energy. The skill required to stay (or even enter) into the Twilight for an extended period of time is acquired through formal training. Others who lack this skill yet still manage to enter the Twilight are at an increased risk of being completely drained of their life and energy. The nature of Twilight is not fully elucidated in the first novel. It is composed of seven levels, each layer requires geometrically more power to enter and remain in. Each layer is quite different from the layer above it. Most powerful Others can't make it past the 3rd layer, a higher magician can penetrate down to the 5th layer. A Magician beyond classification such as Gesar or Zabulon can get to the 6th layer. Only a zero point magician can get to the 7th. Zero point magicians have come into being only once every thousand years or so. There are stories of magicians who have been lost to the Twilight either because they exhausted their energy in battle (within the Twilight), or because they were careless. Novices have also been lost to the Twilight because they have allowed it to take too much energy; they lack the skill to "feed" the Twilight. Some greatly powerful Others decide to fade into Twilight when they have grown tired of the world. "Regular" laws of physics, that is, the laws of physics present in the ordinary (human) world do not apply in the Twilight. Unless enchanted, physical objects can only affect beings on the first level. A nuclear blast extends all the way down, through every level. This is why the Watches have done everything in their power to prevent nuclear wars. Others' auras have color in the Twilight as do their emotions and the magic that they manifest. The colors present in or around an Other in the Twilight can be read in order to gauge their feelings. The Twilight imbues the Others with most of their magical powers. It is also responsible for giving them their unnaturally (in human terms) long lives. Due to the Twilight, Others can live to be hundreds, possibly even thousands, of years old. This is because, unlike regular humans, they absorb rather than produce magic. The process of absorbing magic also extends their life. The more powerful the Other the less magic they