A parenthesis 'and with no one, not a soul'

The protagonist, Philip moved in with his uncle Mr. Carey, the Vicar of Blackstable after his mother's death.
He goes to the medical school St. Luke's in London.
He found his friend died in his room.
........................................
He had his hat and coat still on, and he ran down the stairs into the street; he hailed a cab and drove to Harley Street. Dr. Tyrell was in.
"I say, would you mind coming at once? I think Cronshaw's dead."
"If he is it's not much good my coming, is it?"
"I should be awfully grateful if you would. I've got a cab at the door. It'll only take half an hour."
Tyrell put on his hat. In the cab he asked him one or two questions.
"He seemed no worse than usual when I left this morning," said Philip. "It gave me an awful shock when I went in just now. And the thought of his dying all alone.... D'you think he knew he was going to die?"
Philip remembered what Cronshaw had said. He wondered whether at that last moment he had been seized with the terror of death. Philip imagined himself in such a plight, knowing it was inevitable and with no one, not a soul, to give an encouraging word when the fear seized him.
[Of Human Bondage by Somerset Maugham]
I'd like to know with what "and with no one, not a soul" is in parallel relationship.
Thank you in advance for your help.