[Louie's definitely suspicious, to a degree - Scrooge doesn't seem entirely casually, and he usually loves to go on and on about adventures of the past. So... Hmm. But he shrugs it off as he explains the Moonlanders.]

Aliens that Mom met on the moon. And if we thought Magica was bad, get this. We all needed help from Glomgold to ruin their plans. It was super weird, really.