Possible Clues:

• That's neither usual, nor is it to get Mother in the lab
• Not the usual thing to have a girl in the lab
• Not right
• Sailor girl's beginning to look strange
• Operatic heroine hides in a barrel? Strange!
• Falling outside the curve
• Odd seaman on lake saves girl
• Lab rebuilt round ruined manor? That's strange
• A British girl put on pounds: unusual?
• Lab rebuilt round ruined manor produces rum