Donald Duck #41/1999

In "null," Scrooge McDuck’s latest invention—a portable door that opens portals through any wall—draws the attention of the Beagle Boys, who steal it in a bid to crack open Scrooge’s money bin. With Willie Wortel and the Zware Jongens in tow, the trio sets off on a chaotic chase through the walls of Duckburg, testing the limits of Gyro’s device and Scrooge’s resolve.