This text is written in Common and is entitled the Fugue Plane written by Garth of Suzail, dated 1354 DR. It appears to contain a summary of the nature of the Fugue Plane in the context of the afterlife of those in Faerun. A key passage reads as follows:
When mortals die in Faerûn, their souls travel first to a bleak, gray place called the Fugue Plane. A pocket of the Astral Plane, the Fugue Plane exerts an irresistible pull to mortal souls. Though spirits have been known to lose their way to the Fugue, and though some are intercepted by necromancers or creatures that prey on souls, the majority of souls immediately travel to the Fugue upon their body's death. In the center of the Fugue Plane stands the City of Judgment, where the gathered souls will eventually travel to learn their final fate.