"The Lord of the Manor has spoken; all must obey," announced Roger Comstock, Marquis of Ravenscar, and shoved his chair back; and that was how he and Bolingbroke ended up on the roof of the house, ogling the latter’s Newtonian reflector. But as it was still twilight, and the stars were not out yet, her Majesty’s Secretary of State had to content himself with aiming it at terrestrial targets. The facility with which he did so gave Roger the idea that this was not the first time he had used the instrument to spy upon neighbors, near and far.