UMUR "Chamber of Ages" is the second studio demo release by US, Florida death metal act Massacre. The demo was independently released in June 1986. It´s the successor to the April 1986 "Aggressive Tyrant" demo, although the two studio demos are bridged by the April 1986 "Official Livetape" demo. Since the release of the "Aggressive Tyrant" demo guitarist Allen West has left and has been replaced by Rick Rozz. Although bassist Mike Borders plays on this demo he would soon be replaced by Terry Butler. It wouldn´t be long though before Massacre folded as a consequence of all members minus lead vocalist Kam Lee joining Death.

The pace has generally been increased since the first demo and "Chamber of Ages" is a fast-paced, aggressive, and raw sounding demo. It´s still thrash metal oriented death metal and Lee performs both low grunting vocals and higher pitched screaming vocals. Three out of the four tracks featured on the 15:14 minutes long demo were re-recorded and included on Massacre´s debut full-length studio album "From Beyond" (July 1991, Earache Records). "Clangor of War" is exclusive to this demo, although it has since been included on the "Tyrants of Death" (March 2006, Iron Pegasus Records) compilation album. The sound quality is raw and unpolished, which in this case suits the rawness of the material perfectly. A 3 star (60%) rating is warranted.