From LSWiki

Class: Language Skills
Attribute: Intellect
Pedagogy: Procedural
Practitioner Term: Speaker of Zadjalin
Hidden Skill
Language Sound: Sibilant
Language Difficulty: Hard
Language Speed: Fast
Language Overlaps:
  Sperethiel: moderate
  Dazask: slight

The ability to speak and comprehend Zadjalin, spoken by the dark elves of the
subterranean world, the drow.  The language is derived from ancient Sperethiel,
but has drifted considerably, becoming mixed with the harsh phrases of deep-dwelling
races and the sibilant tongues of sinister beings from other planes.  It is a significant
contributor to the structure of the Dazask language as well.

Trainers

Leah's Hill: Arvan the Keeper
Shadowmyrk: Aged Recollection
yathryn: Miss Chalosia
Association:
Guild:
Quest: