"I could not tell you as much as I would like, I have only been along the Sword Coast and the Underdark underneath it."

"You wouldn't have missed much. There is nothing of value inland."

"I was going to say 'I think everywhere has value to the people who live there!' but I guess I can't rule out that the inland is valueless because it's all full of giant nonsapient man-eating clams."

"Those are strictly coastal, I'm afraid."

"They might have little feet. To go around hunting humans in the inland."

"You could potentially transplant them to a salt lake,  but it would have to be a fairly rich one."

"Neither of our ideas sound like a good one to tell a wizard."

"What's not a good idea to tell me?"

"Horrifying monster proposals."

"Better or worse than owlbears?"

"Owlbears aren't horrifying."

Astarion looks at him like he's grown a second head. "Nothing should have a beak the size of an anvil!"

"The thing that bothers me about owlbears is that apparently wizards on two different planets decided to combine an owl and a bear to see what happened."

"I'd say it was a case of great minds thinking alike."

"Says the damn wizard."

He smiles, and holds his hands up. "Alas, I cannot be other than what I am." 

Anyway he was flirting with the druid and not with the Gale. "I'm sure you've had fascinating adventures in the Underdark. I've never been underground on my home planet."

He pauses, thoughtful. "It's a beautiful place.  Dangerous, but beautiful. It's a shame that some of the civilisations there choose to make it more deadly than it already is."

"My favorite places are dangerous but beautiful. People too."

Ah-huh. He is old and experienced enough to recognise that expression. "I'm assuming you're favourite people don't usually grow glowing mushrooms?"

"While my favorite people sometimes give me weird mushrooms, I have not eaten any weird mushrooms that glow!"

"They can be quite tasty. ... nothing more though, usually."

"Perhaps someday I will get to try the finest cuisine of the Underdark."

"If we cross paths in a quieter time, I would be happy to show you."

"It's a date."