While many found the episode visually pleasing, some viewers criticized the animation for the knife-reforging scene and other special effects as underwhelming.

A major change from the books, the show depicts Will having to repair the Subtle Knife through mental focus on Lyra rather than Iorek's mastery alone. This change was seen as both a way to deepen Will’s character and a pragmatic solution for animating a bear doing "advanced metallurgy".

Formal reviews generally gave the episode high marks, such as a 9/10 from Aquavenatus , though user ratings on platforms like IMDb were more mixed, with some giving it a 6/10 due to repetitive storytelling. Key Plot Elements Under Review

Critics noted Lyra's maturing perspective, specifically her speech to Iorek about the necessity of doubt in a world of rigid religious structures.

Reviews often mention that the episode balances intimate character moments with high-stakes conflict, though some critics felt the narrative density and exposition could be challenging for those unfamiliar with the books.