Anchoring is much like enchanting. the main difference is that an anchored spell does not have a trigger spell–it is always on. Use the Enchanting rules to anchor a spell, just do not include the anchored spell.
Let’s assume that Harris has decided to use the ring, not as a protection device, but a prison. He might do everything identically except add a range to his spells and not cast the Sense word “Alight” spell. Since he needs to be at least 7 meters away (or feel the heat) he will have to add 3 MF for a range of 8m. Using the same rolls as above we find:
|_. Spell |_. MF |_. Skill |_. Skill Roll |_. MF Taken |
| Create Fire | 11 MF | 8+1 | 7 Ss | 4 |
| Protect from Fire | 10 MF | 8+1 | 4 Ss | 6 |
| Total | 21 MF |\2. | 10 |
To anchor these spells without any drain of Will he would need 5 successes; 2 for the 2 spells and 3 for the 21 MF.
An alterantive approach would be for him to cast two enchantings: One for the Protect from Fire (10 MF; 1 spell; 2 Ss on enchant roll) and one for the Create Fire spell (11 MF; 1 spell; 3 Ss on enchant roll). This is smarter approach for him for two reasons. First, he can get closer to the center of the area of effect and therefore, he can reduce the cost of that spell. Second, obtaining 3 successes on one roll and 2 on another is far easier than obtaining 5 successes on one roll.