Where are the numbers?

[Halvor (Raknes)]

Shouldn't there be numbers for the books in the series?

Obviously I could start from the top and count (except that this particular series starts with #0 for some reason). But then I wouldn't see where the volumes that do not have numbers assigned to them begin.

[Arenda]

Do you have a link to the series?

Numbering is optional for series.

[Halvor (Raknes)]

No, I don't have a link to the series. I certainly cannot vouch that it's a genuine series.