The Adventures of Selwyn and Robert — Valerie Kerr

The Adventures of Selwyn and Robert began when the author was a teenager creating bedtime stories for her young nephews, who eagerly awaited each nightly installment. Each story had a message, and each adventure was different. This particular adventure starts with a journey to the farm. Selwyn and Robert meet pixies who are concerned that the children, during their visits to the farm on the weekends, tend to have cruel habits regarding animals and other creatures, and they introduce Selwyn and Robert to an unobtrusive way of influencing them toward being kinder.