Isaac and Luca's dangerous attraction ignites, and Scare City burns. A strange destiny awaits them in the ancient ruins the exiles call<i>Concrete Park</i>. <i>Concrete Park</i>--a dark, sexy sci-fi saga by Tony Puryear (<i>Eraser</i>) and Erika Alexander (<i>Living Single</i>)--concludes its &quot;R-E-S-P-E-C-T&quot; arc!