There is a siren on my desk that I keep in pristine condition. Every night I polish and clean the surfaces and check the wiring before heading to bed with a satisfied sigh. Its purpose is simple: whenever Blizzard release a new cinematic, it alerts me to this fact. Me and most of the neighbourhood. About an hour ago it went off again, as the legendary developer officially announced the new Diablo 3 expansion at gamescom. All the details and that unparalleled talent for beauty in the deeps below.