Inside this tome you will find:

•  A system to cast cooperative spells for character that share an empathic bond.
•  A system to forge empathic bonds.
•  50 spells "roll to cast", focused in magic as a cooperative act.
•  Spells with possible complications.
•  Spells that requiere extra resources.
•  Spells without levels.
•  Spells that interact with magical resources of other systems.

Tome of Threads and Bonds is a cooperative spell system for old school RPGs (OSRs) and modern fantasy RPGs.

A5, 78 pages, Black and White.
In addition to the main pdf, this game includes a pdf for an easier printing as a booklet.