Simon and the Chinese Connection, to be found at:
http://www.eunuch.org/Alpha/S/ea_10705simon_an.htm
In his latest adventure, set in a new School a bit later on, our hero runs up against: a foul teacher with a nasty habit, a new Matron with a better habit than what Simon's used to, and a new student from China. And we mustn't forget the ever-faithful Melanie, who is always there for her "favorite gelding". More adventures with Neutersol, the choir, and Mark and Roddy.
Go and read it now.