Yes! Indeed it is! My advice to anyone finding this elusive is to not follow the walkthroughs, and treat all with respect. i.e.
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×Don't frustrate Eitri, just "yes that's fascinating"
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×Never ask anyone anything personal (like why was the valkyrie bound, why did Arngrim leave Fornsigtuna?
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×I chose "Leave me alone" in the 1st and 2nd encounters with Ratatosk
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×You must kill Fafnir in combat - you have accepted a challenge from Regin.
Finally I had tried to accomplish much in Svartalfheim on my first visit, but
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×to justify honor in killing Fafnir, you must ask Skrymir about Regin, which can only occur on the second visit
. Also I never
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×entered his house first time
. I hope this helps. Cheers!