Walt Disney's Comics and Stories #9 (357)

When Donald Duck insists that the nephews’ toy hypno-gun is real, he decides to test it on Uncle Scrooge—only to find that it works on him instead. Now, with Donald under the gun’s strange influence, the boys must figure out how to snap him out of it before he starts acting on his latest, silliest idea.

Mickey Mouse and Goofy team up with detective Shamrock Bones and the unlikely duo of Idjit the Midget and Dangerous Dan McBoo on a wild quest to find a priceless ruby hidden in a long-lost plane deep in the mysterious No-No Land. With clues leading to the treacherous No-No Mountains, this unlikely crew must navigate strange terrain and unexpected traps—before someone else does.