Complex sentence: The next morning in the garden, as Markus plays hide and seek with Nathalie, he imagines her in the various phases of her life in that garden, and hides amongst the many "hers".
Split into simpler sentences: The next morning in the garden, as Markus plays hide-and-seek with Nathalie. He imagines her in various phases of her life in that garden, and hides amongst the many "hers".