The Stillborn

Our cautious survey of … led us deep underground, through endless layers of semi-fossilized biological matter. At last, we breached the planet's hollow core - only to find the oppressive atmosphere growing heavier with every step. Despite …'s precautions, the mounting unease proved unbearable. Several … succumbed to a collective breakdown, collapsing into catatonia. They had to be evacuated immediately. The vast cavern at the planet's heart is no ordinary void. Buried within, we found the remains of something far beyond the scale of any known lifeform. Faint traces of amniotic residue erased all doubt. … was never a barren rock. It is an egg. And within, a stillborn monster sleeps.

The command below will trigger the "The Stillborn" event in Stellaris:

When this event fires, you can choose between the following option:

• Incredible.