Designed for a school in an area near Montreal where once there stood a vast lake filled with ammonites. Their four-hundred million year old fossils are easily found in that region. Students sit in the fossil and run their hands over the impressions of these very old life forms. We are for such a brief moment and these forms give a sense.the immense expanse of time. This work was commissioned as part of the integration of art in architecture program of the Quebec Ministry of Culture.