This spell is a part of the Transference spell chain and found in the Transference rune stone.
Teleportation moves the mentimancer alone and only within sight over a short distance. Transportation asks a more ambitious question - what if the group could move together, not through physical space at all, but through the dream space that underlies it?
The mentimancer opens the thin place between waking reality and Dream just enough to step through, pulling those holding onto them into the passage alongside. The dream space does not look like the waking world. It does not follow the same rules of distance. The mentimancer however is allowed to sense the reality without. Using that sense, the mentimancer navigates it with the confidence of someone who has spent their practice learning its nature, moving the group through Dream's interior toward the destination they have chosen, covering a distance of Arcana multiplied by their Movement range before stepping back through into the waking world.
The chain of contact is not ceremonial. It is survival. The dream space does not hold onto people the way the waking world does. Those who break contact with the chain find themselves adrift in Dream without an anchor, falling away from the group into wherever Dream decides to put them. The mentimancer holds the path, granted special allowance to do so. Everyone else holds onto each other and trusts that the person at the front knows where they are going. Dream is not hostile to travelers. It is simply indifferent to those who let go.
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