"The shape is that of a nautilus shell," says Curufin, looking closely and shining his own SCA light on the artifact. "But that is interesting, that it is made out of smaller shells. The light seems to be coming from the center of the nautilus, but what is the source of the light? Is it magical or electrical? And as Nita says, is this an SOS? Did some mer-person manage to wake up and switch it on?"