I’m sure there’s a word for something like that. I’ll shoehorn this intro-short into the front of WWE somehow…
I’ll have a little banner across the top front cover that says “A sequel to Echoes of Family Lost” and include the same in the descriptor of the Amazon page. If someone wants to buy it anyway – and Lord knows I bought dozens of SF/F books as a kid, not knowing they were halfway through a series – then what’s below the fold should give them enough traxion to get into the story.
Need a good copyeditor? Monica is your gal.