It's the morning of Topsy and Tim's first day at school. Topsy is excited but Tim has a funny tummy. Tim feels better when Topsy reminds him that they've got a fun promise to keep: they must wave to Mr Rosen from the railway bridge on their journey to school.

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Topsy and Tim is a series of children's books written by Jean Adamson and Gareth Adamson about twins and their adventures. They were first published in 1960 and were relaunched in new editions in February 2003