What’s Your Least Favorite “Golden Age” Tintin

I’ve been rereading Tintin, and while I love most of the stories, I have to say that Land of Black Gold is probably my least favorite from what I’d call the "golden age" of Tintin stories. I’m not counting the first two (Tintin in the Land of the Soviets and Tintin in the Congo), but out of the main run of stories, Land of Black Gold just didn’t hit the same for me. Maybe it’s because it feels like a mix of different versions due to how it was reworked over time, but the pacing and overall story just didn’t grab me the way others did.

I’m curious, what’s your least favorite story from the Tintin series (not counting the first two)?