'Such an animal is difficult to tame and always likely, when suddenly alarmed, to give our finger a nasty nip with its teeth.' While dipping into ''The Children's Encyclopaedia of 1910'', Axel Scheffler came across a small but indispensible guide to procuring and caring for your pet squirrel. Intrigued by the unlikely notion of a child attempting to keep so wild an animal, Axel created a series of delightful, beautifully finished illustrations to accompany the text.