Complex sentence: We do not learn how Reacher manages to escape the underground facility being filled with fuel by Plato's henchmen before it ignites; a brief description of how he survives the conflagration appears in the next Reacher novel, "Worth Dying For".
Split into simpler sentences: We do not learn how Reacher manages to escape an underground facility filled with fuel by Plato's henchmen before it ignites. A brief description of how he survives the conflagration appears in the next Reacher novel, "Worth Dying For".