Scanlan wanted to be present for "the fun". How did he feel afterward?

The "fun" was the murder of the manager at the pit. Scanlan was subdued by the experience.

Scanlan and McMurdo made their way back; Scanlan somewhat subdued, for it was the first murder job that he had seen with his own eyes, and it appeared less funny than he had been led to believe. The horrible screams of the dead manager's wife pursued them as they hurried to the town. McMurdo was absorbed and silent; but he showed no sympathy for the weakening of his companion.