Boy am I getting tired of answering this question. Someone else even asked this before you on this very page! Anyway, the answer is: in the wagon, as seen on pages 331 and 383.
Haha, Duster's expression in panel 8 is fantastic. Basic jist of what I interpreted: "He just offered you his best friend. teach him some damn magic!" To which Cliff responds with the "Cliff face" a general expression for dealing with all idiots.
Haha, I thought Buwaro was going to take off one of his necklaces, and then we'd have a problem. This was a surprise, but cute. I wouldn't mind seeing Cliff get a bit closer to Buwaro. Poor kid needs some friends and people who care.
I find it so sad that he's willing to give up Thadius, but his sincerity makes it so much more touching!
It's not healthy.
Buwaro: Don't you like me any more Thadius