The gift was carved out of water ice and plated in glimmering frozen ammonia. Machinery beneath the dome maintained it at 40 degrees Kelvin. The sculpture consisted of two oblate lumps covered in filigree spires of delicate crystalline frost. The tableau was set on a rippled surface, possibly meant to represent some unimaginably cold sludge-ocean. Off to one side, poking through the surface, was a smaller hinged lump that might have been an elbow.