A Deathnote is the mystical notebook which the Viz Manga sereis Deathnote centers around.

It is owned by a Shinigami Death God, at least until it drops down into the Human World,

where it will belong to the first human who touches it. The Deathnote has the power to kill

any person whose name is written inside it within six minuites. There are specific rules to the
 
Death Note. 

1. The Human's name that is wrighten in the death note will die

2. This will not work unless the wrighter has th human's face in mund so that everyone else with

the same name doesn't die aswell

3. If you do not wright a cause of death within 40 seconds the person will die of a heart attack.

4. After wrighting the cause of death the wrighter has 6 minutes and 40 seconds to wright the

details of the death.

A final note on the Death Note. Those who use this tool is no longer permited into heaven or hell. There is not afterlife for them, but they will still die.