By Thursday morning there are eleven reports on Halvard's desk and four of them are about students who countersigned each other, and he reads all eleven and then puts his head in his hands for a moment.

HalvardYou have found the gate.

TamsinWe found a gate. Somebody left it.

HalvardSomebody left it, and I am the formality who has to decide whether it was left on purpose, and I have been this formality for four years and this is the first time it has mattered.