Petronella is not an ordinary witch, but a kind and cheerful one. And she doesn’t live in some hut in a dark forest—instead, there’s a magical house in an apple tree, in the center of a fruit orchard near the mill. For many years, that mill stood without an owner until, one fine day, a whole noisy family moved into it. At first, Petronella expected every kind of trouble from the new neighbors, but one day, two of the newcomers came to visit—and turned out to be charming children! It was a boy, Luis, and his little sister Lina. From their very first meeting, Petronella and the kids liked each other, and then they became friends. Right on time—because without the help of a good witch, Luis and Lina could only dream of winning an important contest, but that’s a long story… For adults to read to children of primary and middle school age.