I want it, but I can't find it...

... It being a soundtrack.

Now, I'm well known as a collector of soundtracks, mostly for SF/F films and various anime. And I have a fair collection in many ways, if I do say so myself (and, in fact, I DO say so myself!). There is, however, ONE soundtrack that has eluded me for over ten years now. I have never found a source for it. I know it EXISTS -- I knew someone -- unfortunately exactly WHO that someone was I cannot remember -- who had it, and I have verified that in fact there were no less than THREE soundtrack CDs produced for the show, but I have never seen a copy.

The show: New Super Android Cutey Honey.

"Cutey Honey" is something of a phenomenon in itself -- one of the earliest examples of the Magical Girl subgenre as a TV show, it has been reborn more than once. This was a series of OVAs starting in, I believe, 1994-95.

Periodically I post on various forums hoping someone will be able to give me a lead on a copy, or someone who owns a copy who's willing to let me copy it. (the latter was how I finally, after nearly as long, got a hold of the semi-legendary Airwolf soundtrack).

And now, a challenge to Identify This Book!

As I was posting about Old Soundtracks I Can't Find, I was reminded of this book from my childhood. I have posted the request to help me identify it in MANY locations, and never even gotten so much as a GUESS as to what it was. There are actually TWO books involved, though the first one is the one I'm really curious about:

1) Children/YA adventure book. Set on Hawaii or a very similar volcanic tropical island in the Pacific, this book features (I *think*) four young people who are friends, almost certainly 2 boys and 2 girls. The main adventure they end up on is getting lost in the rainforest on the island and running into a Japanese soldier who is still fighting WWII (I think the date of the book is sometime in the 1960s, cannot be later than the 70s). One of the kids is hurt and so they cannot easily escape at first. Finally, when they DO escape, it's in a jeep or something similar which, in the grand finale, they are driving down an empty lava tube and the volcano begins to erupt, sending lava thundering down the tube. They just barely outrace the lava flow, exiting the tube with only seconds to spare before the flow bursts out.

Any guesses?

2) A collection of stories about people's adventures in underwater settings; my hazy memory claims the title was simply "Underwater!" with a vague image of a diver menaced by a shark. The one story I recall vividly from the book involves a man fishing in a lake (in Arkansas, as I remember) who is attacked by a huge shark; the shark hits the boat, he goes overboard, evades (barely) one pass from the shark, and then on the second pass manages to gut the thing by pushing DOWN off the boat just as it charges and then stabbing upward with his fish knife.

Again, any ideas?