Famed in the UK for her creation of the Moomin family, Jansson is rather belatedly beginning to gather the richly deserved esteem for her adult writings. For that I offer my heart-felt thanks to publishers ''Sort of books'' and Thomas Teal, who has been responsible for most of the translations. Receiving this one, two things strike: firstly I somehow seem to have missed one of the series, and secondly there'll come a time sooner rather than later when there'll be no more to be had. The former will be rectified, the latter is a sad thought.