Eighth grade's a distant rumor, a tabled issue, and Dylan knows from experience that the summer between might change anything, everything. He and Mingus Rude too and even Arthur Lomb for that matter are released from the paint-by-numbers page of their schooldays, from their preformatted roles as truant or victim, freed to an unspoiled summer, that inviting medium for doodling in self-transformation.

To generate exuberant diversity in a city's streets and districts four conditions are indispensable:1. The district, and indeed as many of its internal parts as possible, must serve more than one primary function; preferably more than two...2. Most blocks must be short; that is, streets and opportunities to turn corners must be frequent.3. The district must mingle buildings that vary in age and condition, including a good proportion of old ones so that they vary in the economic yield they must produce. This mingling must be fairly close-grained.4. There must be a sufficiently dense concentration of people, for whatever purposes they may be there...