https://www.amazon.com/dp/B084BYD72W
Presentation of the author
Marco or if you prefer Professor Marco is a modern man who believes only in the objective truths of science.
His crazy experiences upset him and make him discover that there is a parallel universe, not always measurable with mathematical theories, or that can be enclosed within an arithmetic formula.
Not everything is understandable, not everything is demonstrable, but much escapes human reason.
Are Marco's ghosts only in his mind?
This is not clear, because not everything is scientifically explainable, indeed almost nothing is.
