The development must have been going forward through centuries, to have produced such a monstrosity. It was a true instance of Saiitii manifestation, which I can best explain by likening it to a living spiritual fungus, which involves the very structure of the aether-fibre itself, and, of course, in so doing, acquires an essential control over the 'material substance' involved in it. It is impossible to make it plainer in a few words...
The Whistling Room, by William Hope Hodgson
These things are an invasive species of insidious spiritual fungi that infest abandoned properties, empty rooms and forgotten places. Saiitii Manifestations tend to be slow-developing threats that build-up over time. They are also quite intelligent, but along lines very differently ordered than rational human beings. They will often attempt to mislead investigators into believing that they are confronting a poltergeist or something similar, all the while feeding upon their growing confusion, fear and despair. The Saiitii grow fat and powerful on the suffering and turmoil of incarnate beings.
According to the available literature and incomplete records of various intrepid survivors of encounters with these dreadful Manifestations, the Saiitii spirit-fungus may be susceptible to Holy Word (they must Save or be driven into the Near Aethyr, if successful on their Save they suffer 1d6 damage per Level of Cleric. They gain a +1 bonus on such Saves per HD/Level, so this is most effective when applied early on in the infestation process.)
So far there has been no substantiation of the claim that wounds incurred within the area of effect of a Saiitii Manifestation have an abnormal chance of becoming infected or diseased. Needless to say, any proof in this regard would be of great interest to Unnatural Philosophers and other such scholars who have an interest in these sorts of things.
Saiitii Manifestations can maintain one of these area effect Persistent Phenomena for 1 hour per HD/Level. They must cease the Phenomena in order to cast spells or use another form of attack.
- Sporadic Mad Piping: Inflicts a -1 penalty to Saves against madness and insanity every hour exposed.
- Contemptuous Hooning Mockeries: Disrupts concentration, makes it impossible to regain spells while in effect. Clerics exposed to this effect must make a Save every hour they are exposed or suffer a complete loss of all spells for one hour. Clerics cannot recover their spells while this Phenomena is in effect, and they must leave the area of effect for 1d4 hours and it is strongly recommended that they make use an Atonement or Bless to facilitate the complete recovery of their spells, preferably from another Cleric.
- Seemingly Incessant Whistling: Causes a cumulative -1 penalty to all Saves versus Fear Effects. Also deranges victim's sense of the passage of time, causing those affected to feel as though minutes were hours or vice versa. This time distortion effect randomizes the ongoing healing process of those affected, as well as spell recovery rate, and rest. Fighters and other action-oriented characters must make a Save each hour or become restless and agitated, with a cumulative 20% chance to go berserk.
- Pernicious Whispering Echoes: Disturbing voices at the very threshold of awareness make sleep impossible, cause a -1 penalty to Morale every hour exposed, and reduce any CHAR Bonus a character might have by -1 each hour as well. Spell-casters (other than Clerics) must Save or suffer a form of paranoia coupled with intense dread; they must make a Save to cast any spells while they remain in the area of effect of the Manifestation. This effect will pass within 1d4 hours of no longer being in the area of effect. Optional: missing the Save could result in a spell casting mishap...
Eight Spells Attributed to Saiitii Manifestations