The Eternals have had a strange history.
The newEternalscomic by Gillen, Ribic, and Wilson opens with that mass death being reversed.
Soon after returning to life, Ikaris finds himself investigating the murder of the Eternals' leader, Zuras.

Ikaris on film (played by Richard Madden) vs. Ikaris on the page.Sophie Mutevelian/Marvel Studios; Esad Ribic for Marvel Comics
The Eternals want to protect humans, but are they really just making things worse?
Now that’s an interesting dilemma!
What happens during the time they were gone did they miss a pivotal moment of crisis?

Ikaris awakens on the first page of ‘Eternals’.Esad Ribic for Marvel Comics
Indeed,Eternalsfeels like a richer meal for them.
Well, this book has answers!
Even the Eternals come to realize this.

The resurrection of Ikaris in ‘Eternals’ #1.Esad Ribic for Marvel Comics
“Help us be the Changing People, too,” Ikaris asks his longtime enemies.
It’s never too late to evolve.

One of the infographics from ‘Eternals’.Esad Ribic for Marvel Comics

Ikaris fights Thanos in ‘Eternals’ #2.Esad Ribic for Marvel Comics

Ikaris fights Thanos in ‘Eternals’ #2.Esad Ribic for Marvel Comics