The Hatter was trying to throw a tea party to celebrate his Un-birthday, but when he took a sip of his tea, he found it filled with salt instead of sugar! Private Investigator Jack B. Nymble is going to make use of alibis to discover who swapped the sugar for salt. The second book in the A Jack B. Nymble Mystery series, these books work to introduce young readers to the mystery genre, by using familiar fairytale characters.