The slaves were afraid of Pablo. Obviously.
Pablo had said in front of them that he would kill their friend—Hena, in cold blood.
The slaves thought Pablo cared for them but now they weren't so sure.
Though Pablo predicted that and before the slaves could harbor any negative thoughts, he said he didn't threaten the Hena who was their friend, he threatened the Hena who was simply a Hopeless Romantic Girl.
The eight slaves in front of him, joined like magnets and their heads hung low, heard Pablo and they kind of understood.
They figured Hena loves Pablo and Pablo said those things to the girl who loves him. They didn't know why Pablo was so against love but they understood his threat came because of Hena's idea of love and belief that she could ask for a promise from Pablo.
Pablo also stared at the slaves and he landed his eyes one by one on them starting from the left.
There stood Young, the twelve years old slave. He was the youngest of the lot and he was the most scared.