Heart of an Ocelot.
1. Johnny can fight [they all fight] - but what sets him apart from every other hero of the era is his mind.
1.i When Kat is kidnapped, Johnny must use his mechanical inventiveness. The HeatSeeker is a first
class sci-fi invention that some would argue [me] inspired modern infra-red nightscope tech.
2. Like many engineers, Johnny has deep feelings but has difficulty expressing them. In many stories he seems almost oblivious to Kat, but in this one you feel his urgency through the whole case.