Etherwalk

By casting this spell, the priest transports himself and as many as 50 followers (who must join hands at the time of casting) to the Border Ethereal. Unwilling creatures are allowed a saving throw at a -4 penalty to avoid transportation.
The spell then allows the priest and his party to make as many as three round-trip journeys to and from the Inner Planes. It then allows them to return to the Prime Material plane.
Travel rates in the Ethereal plane are at four times normal speed. Travel times for locating or searching along curtains are all at the minimum time possible. Encounters with monsters occur at one-fifth the normal frequency. The priest and his party are not affected by the ether cyclone.
The spell expires when the priest and his party return to the Border Ethereal from an inner plane for the third time. They are then instantly transported to the Prime Material plane.

[Tome of Magic]

Sphere: Astral, Travelers
(Alteration)
Quest

Range: Special
Components: V, S
Duration: Special
Casting Time: 5 rounds
Area of Effect: Special
Saving Throw: Negates