Delivery of Destiny/Transcript

(Scene opens with Phineas and Ferb in the backyard of the Flynn-Fletcher house)

Phineas: And then, we'll circle through a tower of doom. Just think, an entire amusement park that lies on a single track!

Paul: Hey, kids. I've got a delivery for you.

Phineas: Well, that' great!

Paul: Now, I'll just need your--Oh, no. I don't have a pen.

Phineas: No problem, I'll just use the pen you left here yesterday. (signs form) Ferb and I modified it so you won't loose it again.

Paul: Huh. What did you guys do, install a homing device?

Ferb: Actually, we just put a clip on it.