Related Clues:

• Objection to son's treatment is not easily understood
• Old boy's treatment producing faint
• Requiring secret knowledge
• Bow to topless female in secret...
• Vague old bishop's needing parish priest in tow
• Former pupil�s remedy not easily understood
• Mysterious vessel entering region, finally invisible
• Not distinct
• Hidden stem by a river
• Cloud over, primarily blocking sun -- correct
• Dim former pupil's treatment
• Mysterious Arab punishment
• Concealed curve -- advanced, taking two directions
• Old boy's remedy may be unfamiliar
• Mysterious reading from leading academy staff