This is a rather small short story set in the immediate aftermath of "The Prefect".
The dynamics is completely different: there's no emergency, no crisis, no big ideas or dramas being played out; instead, just a dialogue between two of the main characters about an unrelated event, with some highlight on the bond between them.
Nice to see them again on such short notice, but it was kind of too sedate and prosaic for my tastes -- to the point that being really short, in this case, was a plus.
If you are a completist and likes to read everything in a series or from an author, go ahead and read it: shouldn't take more than a half-hour, and it's available for free on Gollancz website. Otherwise, I wouldn't bother.
My rating is an exact 3/5, no rounding up or down necessary.