This might be easier than you´re asking for, but I heard about this other book: "Árstíðir: Sögur á einföldu máli" that is aimed at Icelandic learners.
https://www.amazon.com/%C3%81rst%C3%AD%C3%B0ir-S%C3%B6gur-%C3%A1-einf%C3%B6ldu-m%C3%A1li-ebook/dp/B084T1KBLJ