The Stone of Memory is a lesser focusing stone created during the Second Age. Its purpose was to allow a wizard or magical researcher to work towards his goal while saving all the random thoughts and tangents that would arise during his work for a later date, when a new idea comes up that isn't related to the topic at hand the wizard would focus on the thought for a moment with the stone in hand and the stone would save it for later. Any idea pattern has a shelf life of 24 hours, storing an idea takes a swift action, recalling an idea takes a full round action. If used when researching a topic or creating a new spell you may shave off one hour from the total research time.
Price 22,500 gold
Caster Level 15th
Aura Moderate, (DC 25) Enchantment
Activation Swift/Full Rounds (see text)