Welcome to MR, cearbhallain and thank you for jumping in with a suggestion.
The Decameron is available right here in the MR Library.
Quote:
Originally Posted by BookCat
One of my cats died recently  so I'm trying to "hide" in books.
<snip>
Public Domain and Creative Commons preferred cos the cat, bless her, cost a fortune in vets bills and I'm broke.

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BookCat, I'm so sorry to hear of your loss.

I, also, will lose myself in books when something difficult happens. I find that less complicated and slightly different books are easier to move into and out of when my concentration wanders easily.
Historical novels and romances with a twist ...
Sentence of Marriage by Shayne Parkinson mentioned by lene.
Also,
Black Silk by Jan Gordon
For something fun and different..
I can second the recommendation by Billjr13 for Boomerang By Alan Hutcheson (you probably have this on your Reader)and
Living History by Ben Essex
Also,
His Robot Girlfriend by Wesley Allison
Young adult stories ..
Whirl of the Wheel By Catherine Condie and
Tales of the Ragoon, Sam's Winnings plus
Tales of the Ragoon, Kate's Movie Star by Stan Morris.
You can also click on the links in my signature to see the feedbooks list of MR Authors and the Thread on MR with A List of MobileRead (MR) Authors. You can spend time clicking the links to check out their books until you find something that looks interesting.