From Slaanesh or possibly a Tyranid? Here is this week's Rumour Engine Teaser.
via the Warhammer Community
https://www.warhammer-community.com/2018/05/15/rumour-engine-may-8th-2018-2/
Rumour Engine – May 8th, 2018
Still hungry for reveals after Warhammer Fest? While we can’t give anything away just yet, we can give you a hint in the form of this week’s Rumour Engine…
