Book 13 (Issue 5) of the Legends Collection, the monthly subscription of Warhammer 40k from 2016ish.
This book, Horus Rising by Dan Abnett, is New & Sealed
I have 39 books available in total, 36 of which are sealed, all to be listed individually. I will consider bulk/combined offers (although they have to be done individually thanks to eBay’s new offers system).