The fey couldn't think straight. Poseidon had instructed him to get Bellerophon's corpse back. But if he did that, Adrian would inform the other admins about the incident.
An anomaly during trials was something the admins took seriously. If they got to know he did it because Poseidon had paid him with artefacts, all hell would break loose. His days as the floor admin would be over and they might even throw him in Tartarus for it.
That was the last thing the fey wanted. Even if it cost him the relationship with Poseidon and the rest of the Olympus, besides, since he was an admin, they wouldn't dare mess with him even if he told them to fuck off.
In other words, the choice was obvious. Begrudgingly, the fey flew away, leaving Bellerophon's corpse aside for Adrian.
"That's what I thought," Adrian smirked, watching the fey fly away.
