Inscribed Githyanki Slate is a stone disc carrying information in 
tir'su and also sometimes illustrations to the engraved text. There are several such objects with the same name that can be picked up throughout the game.
This stone disc is carved with circular runes and pictographs.
Properties
Author: Githyanki (Faction)
Rarity: Common
Weight: 0.5 kg / 1 lb
Price: 14 gp
Where to find
Coordinates are given to the slates in the same order as their text listed below:
- At X: -78 Y: -1182, near the imprisoned Orpheus
- At X: -100 Y: -1183, near several dead Intellect Devourers and githyanki gishes
- At X: -172 Y: -1183, at the far end of a separate "island" in the Astral Plane pocket
- At X: 1174 Y: 317, carried by a dead githyanki in the Astral Plane (available only if entering the Astral Prism through the Planecaster in Crèche Y'llek)
Text
- [Symbolic drawings, etched over a forgotten text. Two figures, one an imposing female with regal aspect, the other, a devil, his face twisted with wry charm. Their hands meet in the exchange of an artefact - the Astral Prism.] (This slate presumably describes an agreement between Vlaakith and Raphael concerning the Mysterious Artefact)
- [The slate is scarred with faded symbols, carved over with a drawing. It depicts an army, training. Their commander stands proudly at the centre, his face marked with scars, his eyes burning with bright passion. High above, a comet streaks across the sky.] (The slate might describe Orpheus mustering an army of rebels)
- [The image on this slate has been carved with such intensity, that it almost pierces the slate itself. Depictions of slates and weapons frame a lonely central figure, his head bowed, his arms outstretched, chained between two rocks.] (The slate seemingly depicts Orpheus imprisoned inside the Astral Prism)
- [The slate's faded symbols are hard to distinguish, let alone decipher. The drawing etched underneath them, however, are plain to see. They depict a dragon soaring above two individuals: one standing tall, the other kneeling. A circle is drawn around them, a fuzzy tail trailing behind: they are riding a comet.] (The slate contents might refer to Voss pledging his loyalty to Orpheus, with Qudenos flying above)