The queen ordered the return of the slaves Columbus had sent over, and the king told one of his officers named Bobadilla to go over to Hayti and set things straight.

And he sent a letter by him commanding Columbus to talk with him, to give up all the forts and arms in the colony and to obey Bobadilla in all things.
Bobadilla sailed at once.

But before he got across the sea matters, as we know, had been straightened out by the Admiral; and when Bobadilla reached Hayti he found everything quiet there.

Columbus had made friends with Roldan (or made believe that he had), and had got things into good running order again.
This was not what Bobadilla had reckoned upon.

He had expected to find things in such a bad way that he would have to take matters into his own hand at once, and become a greater man than the Admiral.