Astartes holds up dead captain and ceramite slab

At last the moment came. Dak’ir had carried the weight of the pyre-slab for several hours. His shoulders did not even feel this exertion as he fed the chain down slowly, hand-over-hand. Each of the vast links, twice as large as an Astartes’ fist, was etched with the symbols of Promethean lore: the hammer, the anvil, the flame. Though the chain links would not dissolve when they touched the lava, they were still red-hot from the rising heat. As each link fed through his palm, Dak’ir gripped it and felt the symbols being slowly branded into his flesh.

Steam issued from every grasp . Dak’ir did not even flinch. He was focused on his task and knew that every link in the chain must be gripped in precisely the same way so that the three symbols were burned into the same place on his palm. Any mistake, however slight, would be obvious afterwards. The ruined mark would be scoured away by brander-priests, shame and disgrace left in its stead.

Salamander pg. 20