- Esoteric Happy Ending: Both Jack and Thorgil die (but fortunately, they're taken to the Islands of the Blessed to become bards). Their families are left to mourn.
- Unfortunate Implications: Full-fledged Christians are, at best, good but slightly stupid. Only pagans (or pagan/Christians, like Jack), are truly good.
- Hobgoblins are an exception, though (yes, there are Christian hobgoblins).
- In book 3, the heroes meet a shady, treacherous dwarf (not the mythological kind, but a "little person"), who only turns good after Heel-Face Brainwashing.
- What Do You Mean, It's for Kids?: Despite the violence, death, and disturbing imagery throughout the series, it's ostensibly written for young adolescents.