A fun little fantasy novel that blends Scandinavian myth with the usual fantasy tropes (lots of Tolkien, is what I mean). Kid gets magic sword, embarks on quest to save the world (the island of Skarpsey, anyway).
The hero, Kilgore (the name does not fit: he rarely kills, and never gorily) pulls Excalibur (I mean Kildurin) out of a tree, and heads off to save Gondor (I mean Gardar) with the help of the wise old wizard Gandalf (I mean Skanderbeg).
There are enough twists and turns to keep it interesting, and it's different enough from Tolkien to keep things lively and fun, though. For example, it turns out the bad guy wants to throw the magic item into the fires of Mount Doom (I mean Grimshalg), not the hero.
There's also an elf (sorry, Alfar) wizard of dubious loyalty who figures in the plot, and who seems a likely inspiration for a more famous wizard who came later, named Snape. Boyer also adds another scroungy sort of wizard, who causes much trouble as the Gollum stand-in.
The only plot issue that drove me nuts was a queen awakened from a 65 year slumber who immediately believes that sure, she's slept 65 years, going all-in the first time someone tells her she that's what she did, without a second question or looking for any sort of proof that she did indeed sleep for 65 years. Even in a fantasy novel, her reaction is a bit much.
But whatever, it's a fun book (there are several sequels, or maybe prequels, not sure), and it's a great example of the kind of early 1980s fantasy novel that every kid who'd exhausted Tolkien was delving into with fervor at the time, though the tone is pretty light-hearted, more like Peter Pan than Lord of the Rings.