Arthur meets his uncle to discuss the Roxburgh inheritance.

In which we learn the correct pronunciation of 'butter', how to order a drink, and how Banjo got his name.

In which we learn the correct way to deal with Dangerous Supernatural Artefacts.

While the Glasgow Chapterhouse defend Hell's Darkest Pit from the malign forces against them, elsewhere in the Empire other illuminates reflect on their recent adventures." A guest episode by Andy Rafferty, produced by Bill Thomas.

Space and time prove to be relative, plans come to fruition, Hieronymus's fortunes rise and fall (again) and the truth is at last revealed.

Banjo, Cadwallader and Jessie chance their luck with varying degrees of success. Sophia uses the light to reveal the truth while Arthur summons up unspeakable horrors and Godalming continues to act as the perfect servant.

Cressida takes charge of Hunter House while Jessie and Hieronymus catch up with an old society member. Arthur takes a trip to visit family. Banjo pushes his luck.

Cressida returns from Edinburgh and hosts a party. Uncle George and the Tribune reflect on Society business. Godalming makes a friend.

Pride comes before a fall for Doctor Cadwallader while the rest of the society visit a famous mathematician and take her out. Banjo’s luck takes a turn for the better, then worse.

The Roxburghs return to Glasgow to discover Dr Cadwallader in a delightful state of equilibrium. Jessie finds herself out of time.