It feels like a tank is squatting on Thiel’s back. Experimentally, he pushes. Grunting, he raises the slab of rock that is slowly flattening them both by just a few millimetres before letting it down slowly again.
“Can’t get it any higher.”
...
”That’s why you’re going to reach down to my belt and unclip one of my grenades”
..
“Adjust the timer to thirty seconds, then reach up and push it into the gap between me and the rock on top of us. Push it deep. You’re not wearing power armour, and a blast this close will almost certainly kill you if you’re unshielded.”
..
Heat, pressure, the sound of splintered rock, the stench of burnt metal and the taste of blood in his mouth – it all hits him at once in a whirlwind of agonising sensation. Thiel has weathered the blast, though his limbs are numb and his war-plate’s integrity has been severely compromised.

Legacies of Betrayal pgs. 468-470