Additional Info
Possible drop from the trash mobs of Dread Palace.
Holocron of Dread SWTOR decoration, screenshots and information!
Operation decorations have a chance from dropping from a certain operation. Some drop from the random mobs, while others drop from the bosses. A 16-man will drop more decorations that an 8-man, and the harder the mode of the operation the better chance of a decoration dropping.
The Holocron of Dread decoration is dropped from the Dread Palace Operation.
Possible drop from the trash mobs of Dread Palace.