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title: My Notes on Ars Magica
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# House Rules and Interpretations
+ [House Rules]()
+ [Mythic Europe]() House Interpretations
+ [Folios](Folio/Folio)
# Mercere Portals
A common question is how easily the redcaps travel. In particular,
where do they have Mercere Portals? Some are mentioned in canon, but
they are scattered across many books, and it is hard to find them all.
There has been one effort to map all the
[Mercere Portals](https://lexhermetica.wordpress.com/2021/01/09/maps-of-the-order-of-hermes-portal-network/).
Personally, I prefer the map of canon portals.
This means that redcaps in many tribunals have to use mundane means to
travel to the next tribunal. For instance, in Hibernia, redcaps from
Leth Moga could go by ship to Bretagne and use the portal via Durenmar
to Harco. Redcaps from Leth Cuinn could go to Coventry to relay
messages or use the portal to Harco.
The more speculative map means that travel and messaging is much more
efficient, somewhat breaking the medieval feel. The redcap travelling
vast distances by mundane means becomes a lot less common.
# Legacy Notes
+ [Rejected House Rules]()
