This article discusses the process and results of a junior school initiative from a local authority in the East of England, to ensure that vulnerable pupils in the school experience a successful transition to high school. The resulting project is the consequence of an inter-organisational collaboration between the junior school, a secondary school and the local educational psychology service. The transition intervention, which is the first product of this project, was borne from the ideas of year 7 students with special educational needs, which were analysed and presented visually into a transition booklet, later used in the intervention with year 6 pupils. At the end of the intervention, the year 6 pupils provided feedback, which informed first changes in the intervention. Overall, the intervention was successful and because of the interest drawn, it was decided to extend the initiative to other schools with year 6 pupils.