[7] Hyrieus hired Trophonius and Agamedes to build a treasure chamber for him but they also built a secret entrance to it, so that the treasury was easily accessible by removing just one stone from the outside.
He was dumbfounded at discovering that his fortune was diminishing while the locks and seals remained intact; to catch the thief, he laid a snare.
Agamedes was trapped in it; Trophonius cut off his brother's head so that Hyrieus would never know the thief's identity, and himself disappeared in a chasm of the earth.
He was visited by Zeus and Hermes (some add Poseidon), who, to express gratitude for his hospitality, promised him to fulfill a wish of his; he said that he wanted children.
[10] Nonnus, on account of this story, refers to Orion as "having three fathers" and to Gaea (Earth) as his mother.