Absent Players and their characters: Why The Rule

Absent Players and their character: If a player is absent during a session, their characters are unable to be located or interacted with by the current party. Player character can be considered completely safe when the player is not at the table. Intermediary Non-player characters can be used for minor interactions like sending notes or completing previously agreed upon financial transactions

Why The Rule: This rule limits the active party resources and forces them to work with their character's skill sets. It also prevents the Dungeon Master from role-playing a player character.

DM's Note: Scrying and locating spells directed towards an absent player character automatically fail. There's just to much DM magic interference.