This is another ruin in Montreal Canada (Chain Reactor, Casagrande & Rintala, Montreal Biennale of Contemporary Art 2001) build for high tech people in the information technology centre of Montreal.The work is a low tech information centre, a public fire place. We collected one kilometre of used chain from the Montreal harbour and made a 6 x 6 x 6 metres steel frame to hang the chains.In the centre is the fire place. We hoped the information technology workers to get down from their offices to have their lunch around the fire and then smuggle the smell of smoke back into their offices in their suits as a positive virus.The fire place is an ongoing theme in my works. This is where we all started, fire place is the birth of society. I enjoy building interfaces into cities, where the modern man can step 1000 years back to realize that the things are the same.Besides fire the main natural element of the work is shadow. The brutal industrial architecture is raised up in order to create shadow, something immaterial but powerful, like the smell of the smoke in the suits.The shadow will rack the interior of the Chain Reactor with the circulation of the sun.