The following are estimates of costs in p.v.f. (pawns of vis forma).
Prices will vary, but this gives players a baseline to gauge if prices are high or low.

- Paying for a ritual spell to be cast that is...
- Buying a Longevity Ritual costs (lab total without assistance/10-1.6)^2 p.v.f., rounded up with a minimum cost of 4 p.v.f. plus the Vis required for the ritual (age/5 rounded up, and anything added for bonus). Assume the magus crafting the Longevity Ritual can handle a number of Vis equal to the magnitude of their lab total, rounded up to the next even number. You must spend a season, though you get to add your Intelligence + Magic Theory to the lab total as well, and your Familiar's if you have one.

- Buying £10 silver costs 1 p.v.f.

- Buying a full set of casting props (see HoH:S) costs |bonus - 3|*3+1 p.v.f.

- Vis exchange
- Books
- Buying a lab text costs (Magnitude-1)*2/10 p.v.f., minimum 0.1 p.v.f. for all but lesser enchanted devices; texts for those cost (Magnitude+1)*2/10 p.v.f. Lab texts to be purchased must be for spells or items listed in official books.

- Buying a casting tablet costs twice the cost of the equivalent lab text.

- Items and objects