Where are Kindle books stored on MacOS Venture

I used the macOS Kindle app to load a ebook, and I found information related to the ebook at

$HOME/Library/Containers/com.amazon.Lassen/Data/Library/eBooks/B0C9SDZX96/421319EC-947C-4BD0-A312-3956523D16B3

total 3488
drwxr-xr-x 13 me staff     416 Oct 21 22:18 ./
drwxr-xr-x  3 me staff      96 Oct 21 22:17 ../
-rw-r--r--  1 me staff   28672 Oct 21 22:17 BookManifest.kfx
-rw-r--r--  1 me staff   32768 Oct 21 22:17 BookManifest.kfx-shm
-rw-r--r--  1 me staff       0 Oct 21 22:17 BookManifest.kfx-wal
-rw-r--r--  1 me staff  660264 Oct 21 22:17 CR!9DPGZDY5Q94GV12QJRQ1CJ1X162W.azw8
-rw-r--r--  1 me staff  699620 Oct 21 22:17 CR!D7MSM29E7N26X14SP1H349W6P66F.azw9.res
-rw-r--r--  1 me staff    5249 Oct 21 22:17 CR!E7EYF1A8KH3JH869QK35SMF3QKQ0.azw9.md
-rw-r--r--  1 me staff 1949795 Oct 21 22:17 CR!R3EE4RNFR57XS51MM4ZYKVJ0BCP9.azw9.res
-rw-r--r--  1 me staff   45553 Oct 21 22:18 EndActions.data.B0C9SDZX96.asc
-rw-r--r--  1 me staff   70642 Oct 21 22:17 StartActions.data.B0C9SDZX96.asc
-rw-r--r--  1 me staff   54130 Oct 21 22:18 XRAY.entities.B0C9SDZX96.asc
-rw-r--r--  1 me staff    1082 Oct 21 22:17 amzn1.drm-voucher.v1.445292c3-8af1-4152-a046-655da021a2fe.voucher

Now what you can do with this information I do not have a clue.

I'm assuming that R3EE4RNFR57XS51MM4ZYKVJ0BCP9.azw9.res being a 1.9megabytes is most likely the ebook. Just guessing.

NOTE: I found this by A) having Kindle load an ebook, then B) using the 'find' command to search for any files that had dates less than a day old

find $HOME/Library -mtime 1 2>/dev/null

There was a lot of cruft included in the output that I had to filter through until I found the directory with the what I think is the ebook.