Double Act is about 2 twins and there mum died when they where little and they live with their dad and Nan. But one day her dad comes home saying he has met this lady called Rose. The twins Ruby and Garnet hate her the first time she sees her, which is when their dad brings her home to have tea, out off the blue and their Nan tried her best to be nice to Rose. Then her dad suddenly announced that they where moving to the country with ROSE, and that there Nan is going to be put in a home. Ruby and Garnet hate the idea, that means that they will have to change schools and they will have to live with Rose. They start a new school and hate it. But one day they see on the notice board a poster about a modelling thing so they go there on a Saturday, but there dad find's out and Garnet get sent to a boarding school and Ruby doesn't ... I thought this was a really good book and I would advise this for 10-year-old and ups. I also think she is a really good writer and make her books fun and easy to understand unlike some writers.