Internet incident. A mysterious stranger. An old letter. A long hundred days of waiting. Malin is already desperate to figure everything out! And so, what the stranger who handed her the envelope promised came true: a boy named Orestes settled in the Rosens’ empty house. An unusual child. With unusual abilities... When Malin convinced Orestes to look at the message, the boy immediately recognized the secret code. Could the new friends have imagined that these obscure words would turn out to be just the first task on the path to an amazing discovery? A discovery that will connect everything: the local railroad, the Rosen house, Malin’s cello... and, of course, Orestes himself. “The Orestes Code” is a multifaceted quest novel that connects history and modernity, the scientific and the incomprehensible. Its author, Maria Engstrand (born 1973), worked for a long time as an engineer and lawyer, and both of these professions greatly influenced her work. The writer, who is extremely attentive to detail, constructs a plot devoid of flaws: following the adventures of 13-year-old Malin and Orest is fascinating at any age.