Nancy Drew lot #2 to #6

I think these were part of a box set but unfortunately book #1 The Secret of the old clock is missing. Where? it's a mystery for sure. This lot includes: The Hidden Staircase The Bungalow Mystery. This has a small surface scratch on cover. Small part on bottom pages when shut. The Mystery at Lilac Inn. Some light surface scratching. Some spots to the edges of page when closed. The Secret of Shadow Ranch. very light surface scratches. Some wear to pages. The Secret of Red Gate Farm. Light surface scratches. All of the books have glossy covers but the covers do show light to moderate wear. The pages are not bright and crisp but it doesn't seem to have markings or tears. So the pages may have light yellowing especially visible when book is closed. Not the original owner but have owned for approximately 8-10 years. I don't think my daughter even read a few of these.