However, they were on a downhill path, so they rolled down miserably and almost lost consciousness.

Philip was surprised by their actions but allowed Cole to escape.

He was not worried at all that this ignorant person would seek revenge on him.

Cole did not even know what to do with his life, so why would he want to avenge his family?

Even if he wanted to seek revenge, so what?

He could experience what the Clarke family went through after they were targeted.

Philip would let him enjoy the feeling of wandering alone in the world after his whole family was destroyed.