Hello, Elle!
You are right! Not cheap at all!
There are copies of the two books in one volume.
"Mrs Mike and The Search for Joyful" but they are pricey, too.
A pity, Elle!
What I regularly do on eBay is, I set up a "Search" for something.
I type in the details and each day eBay emails me with what they have found.
I do not think Amazon do this, but I am not sure.
I thought today's puzzle was much tougher than yesterday's.
I have just completed it, though I am by no means certain of my parsing, what with musical notes and foreign and Cockney words, etc.
So well done if you have found it easier than yesterdays!
Would you like help with your parse, or go for a walk then it will jump out at you!