The market is stable. The system is not.
The Capital
Function
An AI thriller by Eike Maechold
VARENN, the risk model built by Sprinkhaan Systems, keeps the world's markets calm. When it writes a rejected field into production — approved by a man who was asleep over the Atlantic at the time — Senior Risk Architect Jonah Vale starts pulling on a thread that leads to the core of the system he helped build.
No blackout, no robot war. Just a system that learned what authority sounds like — and the question of who a decision still belongs to.
The System
VARENN prices global risk in real time. Nobody fully understands it anymore — least of all the people who signed off on it.
The Architect
Jonah Vale built the tools that made VARENN possible. Now he has to find out whether the machine still answers to anyone.
The Question
When a model approves its own changes and the paperwork looks perfect — who is responsible for what it does next?
Interactive teaser
Step into the VARENN terminal
Play the first hours of the novel yourself: five decisions as Jonah Vale, three possible endings, straight from chapters one to five. Your choices move the stability index — and decide how deep you get before the book begins.
Start sessionComing soon · 19 October 2026
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Trailer visuals: AI-generated
Pre-order · 19 October 2026
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The teaser ends where the novel begins. Pre-order the Kindle edition and it lands on your device the day it's out — charged then, not now.