The Travelling Detective: Boxed Set was recently reduced from $3.99 to 0.99 Amazon. I have not (yet) read these stories, but they appear to be well-reviewed (individually and as the set). I had them on my "watch list" for a while. The publisher is identified as Books We Love, Ltd., which seems to be a legit publisher.
I suspect this is a temporary price drop, but I don't know for a fact.
Description at Amazon:
Elizabeth Oliver is a travel writer who somehow gets drawn into a mystery each time she is researching an article for a travel magazine.
Illegally Dead: Elizabeth happens upon the discovery of a skeleton in an old septic tank. Although she tells herself she doesn't have time to get involved, it isn't long before she is digging up long-buried secrets. When a second murder victim is found, Elizabeth's travel research provides clues to the disturbing truth behind the murders.
The Only Shadow In The House: In this fast paced sequel to Illegally Dead, Edmonton travel writer Elizabeth Oliver is excited to get back on the open road to research a new article when, suddenly, an unexpected romance leads to a new murder mystery. Though she is determined to stay focused on her writing, Elizabeth can't ignore the familiar goose bumps she feels when handsome wheelchair basketball coach asks for her help to find out the truth about his mother's death.
Whistler's Murder: Elizabeth Oliver has tagged along with her best friend Sally Matthews to Whistler where Sally is attending a science fiction/fantasy writing retreat.
Elizabeth plans on spending the first week working on an article about Whistler for a travel magazine and then relaxing and enjoying being in the famous resort town for the second week. However, her well laid plan immediately begins to fall apart with the discovery of a body in a newly demolished house. Then she is again sidetracked when one of Sally’s fellow students asks her to solve the mystery of her cousin’s death and is then murdered herself.
My pet peeve, of course, is that there is no actual box.
The Travelling Detective at Amazon