'Felix and the Invisible Spring' (Felix et la source invisible) is a captivating work by Eric-Emmanuel Schmitt, forming part of his thought-provoking 'Invisible Child' series. These stories masterfully navigate complex philosophical and spiritual themes through the innocent yet profound perspective of a child. This particular narrative likely follows young Felix on a journey of introspection and discovery, perhaps seeking something intangible like faith, happiness, or understanding, leading him to profound insights about life's hidden beauty and the unseen forces that shape our existence. Schmitt's signature style blends poetic simplicity with deep emotional resonance, making it an accessible and moving read for all ages.