The Malory Towers series has been enormously popular with girls — and no doubt many boys too! — ever since the publication of the first book in 1946. Malory Towers is a girls' boarding school located in picturesque surroundings by the sea in Cornwall. A castle-like building on the cliffs, it boasts four round towers (North, South, East and West) and a courtyard, as well as a swimming-pool amid the rocks which is filled with seawater by the tides.