He told the rebel leader that the most serious problem in making such a long voyage was water. Babo said they should sail to the island of Santa Maria near the southern end of Chile. He knew that no one lived on the island. But water and supplies could be found there. He forced Captain Cereno to keep away from any port. He threatened to kill him the moment he saw him start to move toward any city, town or settlement on shore. Cereno had to agree to sail to the island of Santa Maria. He still hoped that he might meet along the way, or at the island itself, a ship that could help him. Perhaps, who knows, he might find a boat on the island and be able to escape to the nearby coast of Arruco. Hope was all he had left. And that was getting smaller each day. Captain Cereno steered south for Santa Maria. The voyage would take weeks. Eight days after the ship turned south, Babo told Captain Cereno that he was going to kill Don Alexandro, owner of the slaves on board. He said it had to be done. Otherwise, he and the other slaves could never be sure of their freedom.