Him the dog of darkness spied,

His shaggy throat he open’d wide,

While from his jaws, with carnage fill’d,

Foam and human gore distill’d:

Hoarse he bays with hideous din,

Eyes that glow, and fangs that grin;

And long pursues, with fruitless yell,

The father of the powerful spell ...

which Collins, at his best even surer than Gray in prophecy of a new age, could match with—

Whilst Vengeance, in the lurid air,