Moment From His Dark Materials S02:E04

Stealing the alethiometer
In search of the knife, Will and Lyra try to gain entry into the Torre Degli Angeli. Lee finds Grumman - or Jopari, as he is now known - and they take to the sky in search of the knife bearer.
Tags: BBC One, witch, magic, airship, orphan, dust, child kidnapping, parallel universe, alternate universe, based on young adult novel, talking animals