Possible Clues:

• Three-toed sloths
• Sue Grafton's '___ for Alibi'
• "___ for apple"
• Grafton's "__ for Alibi"
• Grafton's '-- for Alibi'
• Sue Grafton's ' for Alibi'
• '-- for Alibi'
• First words in an alphabet book
• '___ for Alibi' (Sue Grafton mystery)
• Grafton's '___ for Alibi'