If the laws of physics of the Material Plane are applied here, progress would be nearly impossible; many things simply cannot be explained, such as the appearance of bones out of thin air.
But if this matter is considered from the macro perspective of the Multiverse, it becomes understandable.
Another skeleton here means one less skeleton elsewhere, especially on the Material Plane.
Of course, this skeleton did not simply disappear; rather, events related to this plane have occurred.
For instance, it might have been sacrificed, consumed and digested by unique monsters produced by this Evil Plane, or directly transformed into an undead by the evil spirits, then expelled by the Priest.
Whether sacrificed or expelled, the appearance of sacrificial items or undead disappearing into thin air on the Material Plane is a commonplace occurrence.
However, many people have not considered their final destination—Abyssal or Hell.
No, no, this shouldn't be Hell.
