"Well the simple story is this:" Trillomore elaborated. "We have the ability to create a sort of imprint of a spell on an item, kind of charging that item with the spell's effect. You would be able to call upon that effect by focusing upon the item and the effect that's been imprinted upon it.”
“So in this case, we might imprint a Tongues spell upon, say, a piece of jewelry that you might carry with you. Any time within a week that you want to use the effect of that spell, you would focus on that jewel, and on the effect of the spell, and you would cause that spell to come into affect upon you.”
Trillomore seemed happy with this explanation. “There are some difficulties with castings of this sort, though, and the imprinting process would take all three of us here, working together in my lab for a number of hours, and we would require a sufficiently high quality item upon which to imprint it…I like to use emeralds myself, but we can use crystal, rubies, mithril…almost any sort of similar material, so long as it is high in quality. You just need to be sure that this item won’t be broken before the imprint is consumed.”
He looked at Belwar, trying to judge whether the dwarf was understanding and accepting this idea and explanation.