The passage develops the perspective that Harriet thoughtfully arranged for her escape by describing the small details Harriet attends to in her preparations. By highlighting the specific actions and attention to detail in Harriet's preparations, the author, Petry, conveys that Harriet put careful consideration and thought into planning her escape. These small details indicate that Harriet was deliberate and thorough in making arrangements for her departure, showing her resourcefulness and determination to escape her current situation.