A barefoot boy appears on a service road outside Varen with no identification, no explanation, and one impossible claim: he knows exactly when a bridge will collapse. When his prediction comes true, Dr. Mara Voss is called in to understand who he is and how he could have known. But Eli knows more than he should. He knows Mara’s name before they meet. He remembers conversations that have not happened yet. He describes events with the certainty of someone recalling the past. Then something changes. The future Eli remembers begins to unfold differently. As Mara searches for answers, certainty gives way to a far more unsettling possibility: Eli may not be predicting the future at all. He may be remembering it. And if those memories can change, neither of them can know what comes next. Where Knowledge Ends is a mystery and science-fiction novel about memory, prediction, consciousness, reality, and the dangerous boundary between what humanity understands and what may lie beyond it.