What is an Intangible Tunnel Effect?

Intangible Tunnel effects are all Rego Vim effects. These effects all create a mystical conduit, a tunnel, between the caster and the target. The following general rules apply to these tunnels.

• • The caster and target are considered to be within Touch range of each other.
• • The tunnel only allows spells of a particular level (and lower) to be cast through it (see individual tunnel descriptions).
• • Any number of spells (that are each individually of the permitted size) may be cast through the tunnel, as long as it is open. For example, in a single round, three multi-cast Searing Touch (each level 5) and a Fast Cast Claw of the Gladiator (level 10) could all be cast through a tunnel that accepts spells up to level 10.
• • Spells cast through the tunnel must target the original target of the tunnel (or the original caster, if cast in the other direction). It is not possible to cast, say, a Demon's Eternal Oblivion effect through the tunnel to target a demon standing near the original target. It is, however, possible to target other characters in addition to the original target. For example, it is possible to cast a spell with a Group target through the tunnel to affect the original target and his companions. Touching a member of a Group is sufficient to affect the whole Group. It is also possible to cast a sense spell to see the location of the target, which might also reveal information about other characters. It is possible to cast spells through the tunnel that affect the Room, Structure, or Boundary that the target is in, as touching a thing in a Room, Structure, or Boundary is sufficient to affect the entire Room, Structure, or Boundary. Of course, if the target is not actually within a Room, Structure, or Boundary, such spells will be ineffective.
• • Other magi can also castspellsthrough the tunnel (from either end) on either the target or the caster. The effective range is the range to the local end of the tunnel.
• • Any spontaneous, formulaic, or ritual Hermetic spell that is at least Touch