The following account was recorded in the agent's log during your transmission: Grey-green water's pouring downwards in an endless, perfectly uniform sheet, cascading into the massive, still pool within the... uh, perfectly hemispherical, crystal-lined cave... Smells like damp earth and, like, green stuff... Air's pretty still, kinda damp, must be late afternoon, considering the low sun shining through the cave entrance, casting an odd, rippling light on the crystal. A... a massive, slowly rotating, naturally formed ammonite shell just, like, seamlessly detached from the wall, and it's somehow generating this soft hum that's kinda harmonizing with my wheezing... coughs weakly...