There is a related topic. One guy said he used diesel which made a mess but was the fastest. Wall paper steamers are also mentioned.

https://www.reddit.com/r/DIY/comments/z71y4o/removing_mastic_while_preserving_hardwood_floors/

>WOW. Thanks. So you put on the diesel on the mastic. The how to you remove the goo?
>
>Years ago I removed black tile adhesive gunk from concrete using solvent. I was going to go to a bar after ward. I drove onto the interstate off ramp. I was higher than a kite. The cop let me off with a warning. I went home instead.

Looking for a book I gave away long ago. I thought it was titled Medieval Song. It was a collection of poems or songs. Maybe troubadour sings. I recall one about a nightingale. "Tandaradei" ??

Another was about two sisters who wanted to have their way with a traveler. He pretended to be mute so that way he could not tell others what had happened. To test him they dragged a cat with long nails over his back and he said nothing. So they had their way with him. The poem ended with "and tit for tat I'll kill that cat."

How to sell small amounts of books online? I had trouble with getting anything I put on Amazon to show up in a search. I have maybe 20 old books, some technical that should sell. I added them to an Amazon account months ago but they never show up, at least not yet.