Eldred’s Pool is a major artifact. Casting detect magic reveals an overwhelming aura of abjuration radiating from it, while detect psionics (EPH 91) reveals an overwhelming aura of psychoportation (if the DM prefers, the pool’s aura can be detected only by detect magic or detect psionics, not both). The pool is immune to magical and psionic effects and is indestructible. It weighs several tons.
Although the pool does not circulate the water that collects within it, any liquid dumped into it is purified instantly, a process that removes all the liquid’s toxins, bacteria, and supernatural qualities. Many locals, therefore, collect their water at the pool. The pool’s most powerful effect, however, remains unknown to most.
The pool is a powerful bane against extraplanar creatures (any creature that has the extraplanar subtype). Every time such a creature sees its own refl ection in the pool’s water, it must immediately succeed on a DC 30 Will save or be sent back to its plane of origin (this effect has a caster level of 20th). Even extraplanar creatures possessing another creature—such as the quori who possess the Inspired—are torn from their hosts and sent home on a failed save. The Riedran consul, Lord Katanavash, is aware of the pool’s power and warns fellow Inspired to avert their eyes from it.