This looks like a good book and most likely will go on my lists to pick up later. (currently in the middle of reading a lot). The origins of the World Eaters looks like a delightful book with just enough bloodshed..... yea.
via the Black Library on the Warhammer Community
https://www.warhammer-community.com/2019/05/25/origins-of-the-world-eaters-revealed/
Angron: Slave of Nuceria is the latest title in the Primarchs series. Written by Ian St. Martin, it’s available to pre-order now in hardback, eBook and MP3 audiobook formats. It’s a look at the earliest years of the most savage primarch in the Imperium. Plucked from his world as he was preparing to sell his life in the name of freedom,* Angron is seeking his place in his father’s empire.
United with his Space Marine Legion, the War Hounds, Angron tries to recreate the bonds of brotherhood he had on Nuceria – but with tragic and blood-soaked results. The novel’s a great look at how a tortured soul passes their trauma on to others, and the consequences of it – and naturally, it’s also filled with intense action.