Espionage School

This school exists entirely clandestinely within a real school (which may, or may not just be a front), and regularly sees pupils walking circuitous routes around the building in order to lose one another, whilst simultaneously, but unobviously trying to keep tabs on the person who (they suspect) is their (espionage) teacher.

It is a secret who is, or is not a pupil of this school within a school, which makes calling the morning register a particularly interesting custom, with students answering their own names in the regular register, while simultaneously trying to surreptitiously signal (the person they believe is) their controller that they are here (by the use of dead-letter drops, pre-arranged code-phrases, nods, winks, facial scratches, cello-tape stuck to window-panes, pieces of string tied around doorhandles, or by some other method) without actually being spotted by any of the others.

Various subjects and classes may, or may not be on the curriculum - depending on who you talk to. Often more than one class will be taught at the same time...

Meal times, the dining hall is packed with people on 'exchange' programs, or those who 'just wandered in' to take some photographs. Some manage to eat two lunches with the use of forged dining papers. But that rumour is unsubstantiated.

The school's mascot is a mole, who may (or may not) live in the sports field.

At the end of the year, the students are marked by someone they suspected least, and the results delivered to their parents via a microfilm laden carrying pigeon.