<p>This article argues that <i>His Dark Materials</i> spatializes childhood by treating space not as backdrop but as an active set of procedures that position, govern, and empower children. Across institutional regimes of discipline, a counter-geography, and the civic horizon of the Republic of Heaven, the trilogy renders governance visible at shifting scales. Through alternative worlds such as the Land of the Dead and the mulefa world, and through enchanted objects that mediate passage and limit, Pullman reconfigures the scale of obligation and reorients forms of attention. Close readings of Jordan College and Bolvangar show how regulated presence and institutional routines format conduct; the Gyptian flotilla develops a counter-geography of chosen co-presence and coordinated vigilance; and the Republic of Heaven reframes politics as material maintenance “here in this world.” By showing how authority is re-scaled through procedures that children can inhabit, negotiate, and co-author, the article moves debates about childhood agency beyond the binary of discipline versus freedom toward questions of scale, authorship, and habitability.</p>