ISBN-13: 9780099583288 / Angielski / Miękka / 2013 / 576 str.
For years, Alfred Ludens has pursued mathematician and philosopher Marcus Vallar in the belief that he possesses a profound metaphysical formula, a missing link of great significance to mankind. Luden's friends are more sceptical. Jack Sheerwater, painter, thinks Marcus is crazy. Gildas herne, ex-preist, thinks he is evil.