First off, the girl on the cover looks familiar. Second off, the description of the H had me picturing at various times George Hambleton in Love at First Bite. Or a character out of Carpe Jugulum (Pratchett) Yeah - he sounded like a vampirate.
This was actually pretty entertaining. The h was not happy at being kidnapped, and the H (unlike those goody-two-shoes Noronians) was amazingly human, in an alien sort of way. Sparks flew regularly. The plot… well, a wild goose chase is a pretty good description. Heck, I've seen worse plots.