Baby Kate and the Imaginary Mystery

Baby Kate and the Imaginary Mystery is the first half of the 5th episode of Season 11. It first aired on June 29, 2007 with Strangers on a Train.

Summary
When Nadine misses an appointment for tea with Vicita's imaginary friend, Tweenie, Baby Kate and Pal grow concerned. They launch an investigation, worried that she may have been kidnapped by the Tibble Twins. Along the way, Francine's cat Nemo is pulled into the investigation.

Trivia

 * Binky reads the title card for "Baby Kate and the Imaginary Mystery." It's the one where Pal searches and sniffs around the title card circle, but howls because it's empty.
 * Peter K. Hirsch is the writer for "Baby Kate and the Imaginary Mystery," while Elie Klimos and Elise Benoit are the two storyboard artists.
 * The Xfinity description guide calls D.W. a boy while saying, "D.W's imaginary friend Nadine is missing, so his real-life pals set out to find her".

Quotes

 * Baby Kate: But what about D.W.? How could you leave her for three whole days?
 * Nadine: Actually, D.W. hasn't called for me much lately. Even though I'm always there for her when she needs me, I think she might be starting to get too old for me. I hear it happens.
 * Baby Kate: If that does happen, Nadine, you can be my imaginary friend.


 * Baby Kate: A cat, a dog, an imaginary friend. What do these three creatures have in common?
 * Pal: Hair! They all have lots of hair! Am I right?
 * Baby Kate: Pal, I was asking them. (indicates the viewers)
 * Pal: Oh, them. Why were you asking them? They never say anything, even when Arthur talks to them.


 * Baby Kate: D.W. and Nadine have always done everything together. Brush their teeth, play hide-and-seek...
 * D.W.: 8 9 10. Ready or not, here I come.
 * Baby Kate: And Nadine always takes D.W.'s side in an argument.


 * Baby Kate: That hole's big enough. Now we just have to put something in it that we want to grow.
 * Pal: (grabs Mr. Read's wallet) We'll make a wallet tree.
 * Baby Kate: Capital idea.


 * Pal: Good luck finding your fly.
 * Nemo: I already found him. We had lunch. (licks his lips)
 * Pal: Oh! Cats!


 * Nemo: A mouse. Blech. Ugh. It's fake. What a rotten trick.


 * Pal: D'oh. What kind of a creature puts a half-eaten banana in his backpack? (He licks it off his leg.) It's not bad.

Home Video
DVD:
 * Dancing Fools (DVD)
 * Arthur: Season 11