I bought these for $62 a few weeks ago on eBay. I was satisfied with the quality for the price and hope you are too. They are in acceptable to even good condition for old paperbacks, a little frayed on cover corners but backs and covers are sound and not falling apart. Paper a little yellow from age, but hardly look like they were read...for at least 50 years maybe? Pretty small print, of course. Anyway, I decided to read something else so will be glad to share these with the reader for the eBay minimum of $1 listing plus you pay the postage for 5# of books via media mail. If you are unsatisfied I will refund your $1 and the postage, but I think you will find these are a good bargain.
The books will ship cheap by USPS media mail and you will pay postage that is calculated at checkout to save you money instead of a flat rate.
Enjoy the mystery! Who dunnit? You won't know til the end!