Authority by Jeff VanderMeer
"Authority" is the second book in a trilogy that delves into the mysteries of a clandestine government agency tasked with investigating an enigmatic and dangerous region known as Area X. The narrative follows a character brought in to oversee the agency after the tumultuous events of the first expedition. As he attempts to assert control and understand the strange occurrences within Area X, he encounters uncooperative staff, cryptic notes left by his predecessor, and the unsettling realization that the contamination thought to be contained within Area X may have more influence over the agency than previously believed. The protagonist's journey is one of psychological unraveling, as he grapples with the opaque hierarchy of the organization and the increasingly blurred lines between reality and the otherworldly phenomena associated with the area he is supposed to manage.