Motif · Book 3, The Dungeon Anarchist's Cookbook
Carl's Doomsday Scenario
A massively overloaded soul crystal shut inside a Sheol Glass Reaper Case: an explosion 'large enough to rattle the teeth of a god,' status Explosion Imminent, un-stabilisable, and in Carl's inventory, where it will detonate the moment it leaves. The book's title, and the most dangerous thing he owns.
Segment appearances
Progression
Still 'Pretty Damn Rare' and at the bottom of the value list (ch. 7), untouched at the sapper's table (ch. 22), and the reason Carl knows what soul crystals do under stress: the ghoul generators' smaller crystals pop like fuses (ch. 31). Elle suggests using it on the abyss; 'I'm saving that for something very specific' (ch. 34).