Mad Honey by Jodi Picoult
Olivia McAfee and Ava Campanello have each had a change of life forced upon them. Olivia never dreamed that after her messy divorce she would find herself back in her sleepy New Hampshire home town, living in the house she grew up in and taking over her father's beekeeping business. Ava is also in search of a fresh start, moving to Adams with her daughter Lily, who is in her final year of high school.
For a short while these new beginnings are just what everyone hoped for. Olivia's son Asher falls for the new girl at school, and Lily can't help loving him in return. With Ash she feels happy for the first time, yet she wonders if she can trust him completely.
Then one day Olivia receives a phone call. Lily is dead and Ash is being questioned by the police. Olivia is adamant that her son is innocent, but she also recognises the flashes of his father's dangerous temper in him. As the case unfolds she realises Ash has hidden more than he's shared with her.