Mjölnir, the hammer of Thor. Aladdin’s lamp. Excalibur. You know they’re out there.
They await discovery: items of power, both legendary and forgotten, forged by the same mythology and fiction that spawned the recursions available in which they lie. 
 
What would you do with a lighting phylactery, the ring ofOdin, a Vorpal sword, the spellbook of Thoth, or the picture of Dorian Gray? What would Earths enemies do with these powerful, Mythic items if
they were brought into our world?

The Encyclopedia of impossible things includes:
More than 400 new cyphers.
More than 250 new artifacts.
Scores of artifacts made famous by the mythology and fiction that gave life to their recursions, plus dozens of emergent artifacts that were created or evolved within the shoals of Earth or the strange itself.

Rules
For personnel recursions For Playback devices characters, including a sheet you
Can use to design and maintain your very own recursion.
 
In hardback edition, the Encyclopedia of Impossible Things is a great way to expand your sessions of The Strange RPG.