“That must be a terrible thing to make a railway engine weep” quoth Dai Station: what oh what is the matter with Ivor, the little green steam engine of the Merioneth and Llantisilly Rail Traction Company Limited in the top left-hand corner of Wales? A wonder from 1962, happily re-published, by the pair who gave us Noggin the Nog and the Clangers. For ages 4-7 – or any age.