It is hard to believe one of my girls guilty, yet it is not probable that any one outside could be responsible.

A girl who would wilfully do such a thing is a menace to the school and should be removed from it.

I am not going to any extreme measures to find the miscreant.

Were I to question each girl in turn I fear the offender might perjure herself rather than admit her guilt.

But I am confident that sooner or later I shall know the truth of the matter." As Miss Thompson concluded, she looked over the roomful of girls who sat watching her with serious faces.