Rune Spells
All Rune Spells are used once and then discarded as usual. Their Rune Power is equal to the that of Character's current space.

Rune Objects
Rune Magic Objects initially have a Rune Power equal that of the space in which they are discovered. If a Rune Magic Object is ever taken to a space with a higher Rune Power than its own then its Rune Power is increased to match. Rune Power only increases for Rune Magic Objects - it never decreases.
For example: Garrik's Sword gives a Strength bonus in Combat equal to its Rune Power. If it is discovered in a non-Runes space it begins with a Rune Magic of 1, giving a +1 Strength bonus in Combat. If it is moved to a space with a Rune Power of 2 its Rune Power matches it and it now gives a +2 Strength bonus while in Combat.