Immortals are a unique race of man.
They can be killed, only if their head is seperated from the shoulders (in other words...decapitated). If you kill them in any other way, they will rise again....then watch out! They are usually not real friendly towards you after that!
They cannot bear children.
Immortals can sense when another immortal is near.
Immortals are born "mortal." They can be injured, get sick, etc., like any other mortal, until they die. Their first death is when they become immortal.
Immortals can sense when a mortal is destined to be immortal.
When an immortal is beheaded, the quickening is released, and it searches out the nearest immortal. The quickening is all the power, experience, and knowledge that an immortal has aquired. The more heads that one has taken, the stronger (s)he grows, until he is beheaded, and the quickening is released to another immortal.
Holy Ground is sacred. An immortal cannot harm another, here.
The Gathering is a force, that draws all remaining immortals together. It is unknown, when, or where, the Gathering will take place.
IN THE END---THERE CAN BE ONLY ONE!