Spellfractal

Favored by Crystal Ponies, this fist-sized, specially prepared gem acts like a small wizard's spellbook. It holds 20 pages worth of spells and requires the Arcane Mark spell and the normal cost of transcription materials to add a spell to a spellfractal. However, the spellfractal only looks like a normal gem (not radiating magic) until it is placed next to a source of light at least as bright as a torch, casting shadows in the shapes of the runes needed to memorize spells.

Price: 3 gp

Weight: 1/2 lbs