Feartotal ≈ Fearnew place × Fearnear Father ≈ constant

Feartotal ≈ Fearnew place × Fearnear Father ≈ constant is Christopher’s mathematical model of fear during his walk away from home. It describes two anxieties moving in opposite directions: unfamiliarity makes the journey frightening, while distance from Father reduces the fear associated with being near him. By representing their changing balance as an approximately constant total, Christopher makes an overwhelming experience legible as a rule.

The Two Fears

Christopher explains that he would normally become increasingly frightened when walking somewhere he had never been. On this journey, however, his fear has two sources: being far from a familiar place and being near Father. As he travels farther from home and Father, fear of the unfamiliar increases, but fear of proximity to Father decreases. Their inverse movement is the equation’s central observation.

The Equation in the Journey

The formula arises as Christopher leaves home carrying Toby in a coat pocket because the cage is too heavy for the journey to London. He heads toward the school, a direction he knows, intending to ask Siobhan where the train station is. The walk gives the equation a practical setting: each step takes him into a less familiar environment and farther from the place where Father lives.

The balance does not make the journey easy. The bus ride from home to school takes 19 minutes, but walking the same distance takes Christopher 47 minutes, and he arrives tired. Father’s van is parked outside the school, recognizable by the sign for Ed Boone Heating Maintenance & Boiler Repair. Seeing it makes Christopher sick. He avoids curling up on the ground because he fears Father will come out, find him, and take him home; instead, he takes deep breaths and counts to 50, working out the cubes of the numbers as he goes. The equation’s approximate constancy is thus a way of describing fear, not evidence that the danger or distress has disappeared.

Meaning and Limits

The expression gives a compact, orderly form to a situation with no simple emotional direction. Christopher is not merely becoming less afraid as he gets farther from home: one fear recedes while another takes its place. Its mathematical structure makes that changing relation easier to state, while the word “constant” registers the persistence of fear across the journey. The equation captures how Christopher reasons through distress without claiming that calculation removes it.