 The subject most often appears as a female humanoid with a mean volume of 90 liters, comprised entirely of water. When it enters a body of water, it becomes indistinguishable from its surroundings. The subject must periodically return to a body of water in order to maintain its volume due to evaporation. Initially found in... It was moved to Site-08 for further study. Subject was initially curious about Foundation personnel, and seemed to enjoy interacting with maintenance staff and researchers, and mimicking their forms. After a number of weeks, the creature apparently felt comfortable enough to remain out of the water during routine monitoring, though it retreated when attempts were made to study its composition. SCP-054 is apparently composed of normal water, with no detectable differences compared to ordinary spring water from the same source. No thermal, electromagnetic, biological, or other phenomenon has ever been detected in its body that would suggest how it animates.