Aararlo was a fearsome gnoll archer, revered by many tribes.
Upon his death, he was buried within a chamber, along with a few fallen comrades.
The tribe's shaman wove a dream catcher upon Aararlo's bow and hung it in the room - aiming to preserve it from evil spirits.
Unknowingly, the device was faulty and mostly prevented spirits from getting out of the room.
Years of entrapment resulted in the restless spirits inhabiting the decomposing corpses and raising them as zombies.
Our heroes confronted Aararlo's zombie form while looking for the body of Lady Adelinde's lost husband.