Creating Metaplot Between Editions with Michael Mercere

Metaplot can be hard to approach, so how do pick what to add? How do you fill in what happened since Avatar Storm? Terry and Michael talk Avatar Storms, the Sphinx, STV supplements, and many many factional plot hooks. The Riddle of the Sphinx - Michael's book on adding plot between Revised and M20 Strange Yesterdays - Alternatives to the 2e/Revised metaplot