The Massacre of Mankind: Authorised Sequel to The War of the Worlds by Stephen Baxter is a detailed followup about the Martian invasion of England. It's a brutal story but easy to envision. It is a long book and I believe much of it could have been edited out. I still gave it four stars.
I received an advanced reading copy from Crown Publishing and NetGalley. That did not change my opinion for this review.
Link to purchase: https://www.amazon.com/Massacre-Mankind-Authorised-Sequel-Worlds-ebook/dp/B014SV4TM6