Interesting and fairly simple history of the attempts to translate Egyptian hieroglyphics, and most notably the work performed by many scholars in trying to understand the text inscribed on the Rosetta Stone in hieroglyphics, demotic (a more modern form of Egyptian writing) and Greek. Because the same text was written in these three languages, the Rosetta Stone truly became the "Key to Ancient Egypt" in that it allowed the modern world to unlock the mysteries of Ancient Egypt through the hieroglyphic writing (of which numerous texts have survived on monuments, tombs, etc.

Rebecca, Peter and Phyllis are three British children (around the turn of the century) who live in a large, beautiful house in London with their lovely and creative mother and their very attentive father. One night their lives change dramatically when their father is mysteriously called away. The children and their mother have to "play at being poor" for awhile, pack up only what seems necessary and move to a house out in the country near a railway station. The story tells of their adventures in and around the railway station and the gradually unfolding mystery regarding their father.

This fourth and final book in the Letzenstein Chronicles tells of young Toby who was found - lost and orphaned - by the eccentric and mysterious Raphael le Marre in a previous book. Raphael ("Raf") seems appropriately named after one of the archangels as he has a way of coming to the rescue of children in trouble and has in fact adopted (along with his wife) some 20 children of his own. In this story Raf brings Toby back to his relatives in London in order to decide his future. Toby has no interest in staying with anyone but Raf.