Thief of Time - Arrive

'Right, let's see...' It scanned the newly revealed text. 'Done that... done that... oh...' It stopped and
turned a pale face to Mrs War.

'Oh, boy,' it said, 'we're in trouble now.'

A comet sprang up from the world below, growing visibly larger as the angel spoke. It flamed across the sky, burning fragments detaching and dropping away and revealing, as it closed with the Horsemen, a chariot on fire.

It was a blue flame. Chaos burned with cold.

The figure standing in the chariot wore a full-face helmet dominated by two eye holes that looked slightly like the wings of a butterfly and rather more like the eyes of some strange, alien creature. The burning horse, barely sweating, trotted to a halt; the other horses, regardless of their riders, moved aside to make room.

***

The Thief of Time - p319