Spark
A spark is a generic measure of magical power that is equivalent to about 1/3 a spell slot. The concept is introduced in order to allow casters to expend less power than a full spell slot for things like metamagic feats or Prestidignation-like powers. It is closely linked to Spell Trickery as well as magic residue.
Creating Sparks
In addition to existing magic rules, a caster (arcane or divine) may spontaneously cast the new the school-less spell _Create Spark_ and _Create Lasting Spark_ (see New Spells) to get a small amount of readily available magic powers that can be used for less specific tasks than a fully fledged and researched spell. Note that manipulation of magic in this fashion counts as normal spell casting and takes one standard action to perform, unless otherwise stated.
This spare magic power come in two varieties: Sparks and Twinkles. Casting _Create Spark_ (from any spell level) creates a number of Sparks that become available for the next 24 hours after that (see Table 1:1 Sparks). A Twinkle is exactly a tenth of a Spark and are entirely interchangable with Sparks.