Dark Sun - Fate of the World
Seemingly simple beads that house volumes of information, for those versed in their use.
When held by one trained in The Way, these beads can be used to contain a memory, a feeling, or a specific bit of information. In a world with no paper, where writing is illegal and reading suspect, these beads are a discrete method to note things for future reference.
Memory Beads can replace the item “Ritual Book” for all intents and purposes.