All Abigail Abernathy wants is a respectable job where she can put her knowledge of analytical engines to use. The Royel Trading Company of Bristol provides her with just such an opportunity, but not everyone is pleased to have her aboard. Between incompetent management, clients helpless beyond her imagination, and a disgruntled former analytical engine analyst who will stop at nothing to take back the job she unknowingly took from him, will her credulity, not to mention her sanity, be up to the task? It’s going to be a long night.