The youngest sister was the prettiest of the three, and she was gentle, modest, and good natured, and every body loved and commended her. […] Near the couch of Somnus stood his three sons, Morpheus, Phobetor, and Phantasmo. […] He was a great dog with three heads, who barked at those who went into the infernal regions, or abode of the dead. […] It was sometimes a stool with three feet. […] About three hundred years ago, it was dug up from among some ruins in Antium, near Rome.