Scrolls are one-time-use version of magic spells. They can be used by the appropriate classes, even if they are unidentified or a higher level spell than the caster would normally have access to. Alternatively, they can be saved and when in an appropriate and safe place, be used to attempt to learn the spell permanently.
Identification
All casters automatically identify scrolls of spells they already know. Identification still takes a turn.
Using Unidentified Scrolls
As long as the scroll is of a type of magic known by the caster, a scroll can be used without identifying it first. Obviously this is risky!
Scribing Scrolls
Scrolls may be created by Clerics or Magic-users at a cost of 100 gold pieces per level of the spell, and require a week of work for each spell level.
Protection Scrolls
This is a rare form of scroll that may be used by any adventurer.