The English translations by Anthea Bell are excellent. The audiobooks are also fantastic (narrated by Marisa Calin).
Many time-travel stories break their own logic. Gier’s system is elegant: the ruby red trilogy
A decade after the final book was published, remains a gold standard for accessible fantasy. Kerstin Gier achieved something rare: a time-travel narrative that is both a page-turner and a re-read magnet. You will go back to Ruby Red just to laugh at Gwen’s first disastrous jump to 1912. You will revisit Sapphire Blue to swoon over the dancing scene. And you will endure Emerald Green ’s bittersweet ending because it is worth the emotional investment. The English translations by Anthea Bell are excellent