Using the formulae included the game moderator determins how much mana is needed to cast the magic. Works very well, but is specific to the game system, would need work to make it generic or useful in any other game. Personally I am thinking of adaptating it to Ars Magica or Witchcraft, both of which are excellent systems, but have shitty, or no, respectively, rules for spell creation.

At a rate of six inches a year, the salt closes in on the waste and encapsulates it for what engineers say will be millions of years.

Those who smiled upon my childhood / Oft round my chair I see, / Who, though grey-haired and world-weary, / Yet grew young again with me!

As a divinity of the earth, Mefitis shows in fact two aspects: cererian, she is goddess of plowing …, and chthonian