How does magic work, in (20th century) scientific terms?
In short, the official rules do not contain any justification for the physics of magic on Harn. It is not truly necessary to have such a justification in a fantasy role-playing game, as long as the magic rules are internally consistent.. However, some players and gamemasters feel more comfortable or find it interesting to develop rational theories of the physics of magic. The HarnPage contains a couple expositions on the subject: http://www.columbiagames.com/HarnPage/harnmaster/magic.html. More are always welcome.
