The fish tank was a feat of glass blowing; and the fish-view selector was a marvel of scrying-magic.
"I can't see anything," the young prince whined.
"It's dark this deep into the sea," the mage explained.
"Oh. Then I want to see... What's in our moat."
"Um, that is not an option," the mage lied. The moat had been used in early testing and... when it wasn't dull, it was concerning, "How about mermaid cove?"
"Oh! My penpal lives there!"