Captain Hugh North 01: Seeds of Murder

When Mr. Wallace was found neatly suspended from a hook in the bathroom ceiling, with a slender chain around his neck and the wastebasket on which he had stood carefully kicked away, there seemed little doubt of it. Especially as there was a note in the dead man's handwriting saying, "I am worried, tired, and sick of heart. Why go on with this senseless struggle? Disgrace faces me."

But -- why was the sheet on which the note was written shorter than all the other sheets on the desk? Where h...