I'm new here on Mumsnet and I have never thought to go online for advice but I really need some help. My daughter, who is 12, is having a horrible time at school. Her best friend dumped her and went off with another girl and they are now making my daughter's life a misery. They are making things up about her and tellling the teacher that she is the one being horrible to them. The girl in question was overheard saying that she would like to poison my daughter's drinking water and has rung round other girls telling them not to be friends with my daughter. I know this girl has a problem with lying as her home life is not very nice but at this point I have no sympathy for her. I emailed the ex best friend's mother to try and come up with a joint solution but so far, no answer. Today is the last day of term and my daughter is going to France on a school arranged holiday. She paid for it herself using some money left to her by my Dad in his will but she is now terrified and doesn't want to go. She has to share a room with this girl and one other as there are only three year 7 girls going on the trip. What can I do? I know my stomach will be in knots for the week that she is away. Any ideas?