I think the man in the yellow suit is very greedy, selfish, annoying, and very very mysterious. I think this because he would not give Winnie back to her parents without a bargain to give the man “The wood.” I also think this because He always is up to no good and sneaking around something or someone (the Tucks). He always wants more money even When Agnes Tuck told him he could not have the water, he still tried to change Tuck’s opinion by saying “I will sell it for a very high price.” Like that was going to change Tuck’s Opinion. Then right after that he aggressively grabbed Winnie’s arm.
He is playing a money shaped harp. (I know it does not look like it).