In Cittàgazze, Lyra decides to go to Oxford to meet the scholar Mary Malone, despite the warnings of Pan and the alethiometer. She leaves a note to Will and heads to St. Peter to Mary's office, but police officer is interrogating Mary. When Lyra arrives, she flees and stumbles upon Carlo Boreal's car, who offers a ride to her. She accepts and later she asks him to stop, but he forgets her backpack in the car. However, Carlo calls her to deliver the backpack. But when she opens it, she learns that the alethiometer was stolen by Carlo. She waits for Will seated on a bank and they decide to look for Carlo. Pan recalls that he gave a card to her when they first met each other in the museum and now they will seek him out. Meanwhile, Mrs. Coulter confronts Lee Scoresby in the prison and she learns how engaged he is to protect Lyra.
"Theft" is an episode of "His Dark Material" with the plot based on a basic stupidity of the smart Lyra. The greatest question of this episode is how this girl that does no listen to anybody can forget her precious alethiometer in a car. This is a very silly way to proceed the lead plot. The attitude of the bipolar Mrs. Coulter is also unexpected. My vote is six.
Title (Brazil): "Theft"