Everything

Once the foundation has been crafted and energized, the mage invests that Wonder with the reality-shaking powers of True Magick /Enlightened Science. Story-wise, the mage exerts

his Arete and Spheres through his focus, casting his powers into the object and turning it into a Wonder.

From there, the player rolls his character’s Arete. The details depend upon the Wonder in question, and can be found on the Crafting a Wonder chart. Assuming a successful investment, the foundation becomes a Wonder.

An optional step, Purification, clarifies your character’s intentions and provides a sterile or sacred atmosphere for the Wonder’s creation. Although this step’s not required, it makes the final investment process much easier.