Hal understood a missing loved one, but what did a turtle egg have to do with anything? Unless he'd missed the fact that Atlantean biology was really strange... He has no idea how to ask if it was his and if he should even ask it. Arthur saying he found it could very easily be a cover up story.

Several strange expressions passes his face before he forces it back to neutral.

"Sorry about that. I guess trying to summon you like this didn't help things."