Felix is the child of my youngest sister.
3 seconds sound clip from the Mad Monster Party? movie soundboard.
You can hear this line at 00:14:15.447 in the Blu-ray version of the movie.
Quote context
[...]
- Who, or what, is this Flanken?
- Oh, don't be alarmed, my dear.
- Felix Flanken is a mere human, and he's unaware of the nature of our little gathering.
- But he also happens to be my nephew.
- Your nephew? I thought you had no... living relatives.
- Felix is the child of my youngest sister.
- They're both gone now, but their son, Felix is my only relative and heir.
- But why are you inviting him to this convention?
[...]