Books in the Psammead Trilogy series

A family of five children moves from London to the English countryside. While playing in a gravel pit soon after the move, the children discover an ancient and rather grumpy, sand-fairy known as the Psammead. The magical being agrees to grant one wish of theirs per day, but those wishes rarely turn out as they expect and they send them on one adventure after the other. Edith Nesbit Bland (1858-1924) was a British author, activist and poet, who published an extensive amount of children’s books under the pen name "E. Nesbit", which are still widely read today. Amongst her most famous novels are "The Railway Children," "The Story of the Treasure Seekers," and "Five Children and It".