Like it says on the tin.
After a *small* skirmish between the Gods of Life and a certain Alien Emissary, several white notebooks fall to Earth(they tried to give the creature life so that it could be killed, but... it didn't work out too well for them. Something about thermodynamics, causality, temporal linearity and entropy equations having been "long since surpassed.")
Each notebook has the following rules written as a preface:
The human whose name is written in this note shall either return from the dead, OR have their life prolonged.
This note will not take effect unless the writer has the person's face in their mind when writing his/her name. Therefore, people sharing the same name will not be affected.
If the cause of return or extension is written within the next 40 seconds of writing the person's name, it will happen.
If the cause of return or extension is not specified, the person will simply re-appear with as they were, but with their cause of death removed.
After writing the cause of return or extension, details of the Act of Life should be written in the next 6 minutes and 40 seconds.
UNWRITTEN POWER 1: the consciousness of a random God of Life is entombed in each Life Note(it seems that The Emissary sealed them into their own books, to use them as doorstops and toilet paper later...) This allows whoever picks up the Note to mentally commune with their Life God.
UNWRITTEN POWER 2: By delaying your own death by 1,000 years(your Life God will offer this deal once you reach 1,000 lives saved...) you will gain the Countdown Clock: by looking at anybody's face, you will be able to see how much life they have left(it looks like the life bar on a side-scrolling beat-em-up game...)
CAUTION: You may only commune with your personal Life God for a total of 180 seconds each day, else, The Emissary will come looking for an extra doorstop...
Other than all of the above, you now wield the power of a LIFE NOTE!
How shall you become God of the New World?