Slotless, Requires Attunement by Artificer

When in possession of this item, the user gains a remarkable insight into the complexities of temporal mechanics and the unique properties of Veil Stones. It provides a significant enhancement to the user's ability to tinker with or construct any device involving a Veil Stone, granting a +15 bonus to all Tinker checks related to this endeavor.

To benefit from the tome's knowledge, the user must spend at least one hour per day studying its contents. This dedicated study allows the user to internalize the book's teachings, thereby gaining the bonus.