You can find the original text on or the Internet Archive .
Because the book is in the public domain, you can download it legally in various formats: : giugo gan islandets skachat pdf
If you were specifically looking for instead of the Victor Hugo novel, you can find textbook PDFs such as Beginner's Icelandic or Colloquial Icelandic through public educational repositories. You can find the original text on or the Internet Archive