Dropout and premature termination are not uncommon in child and adolescent treatment. We present a several-year analysis of a school-age boy whose treatment involved a prolonged impasse that could have led to early termination. Drawing on Ferro’s (1999) psychoanalytic field theory, the analyst describes how this perspective helped him endure and make sense of the shared predicament, culminating in what we term an analytic crucible – an intense transformative process that reshaped the analytic space, the analyst’s stance, and the child’s sense of self. From the perspective of many years later, with deeper immersion in field theory, the analyst reflects on additional aspects of the treatment illuminated by the theory. The case illustrates key concepts from psychoanalytic field theory, how they relate to and build on other psychoanalytic ideas, and their relevance to understanding impasse and promoting shifts in child analysis by expanding the analyst’s capacity to remain engaged, open, and curious.