WAITING TO INHALE

I still have a book from when I was a boy called "Underwater Adventure" by Willard Price.
I've read it about a million times I guess, and there is something like this device in his book that was written in 1954.
The protagonist, Hal, or maybe Roger, rides it while searching for sunken treasure and is chased by a hammerhead shark, stung by a school of jellyfish, dragged through fire-coral and ends up with an octopus stuck to his back. Isn't that exciting?
And probably safer than a Cruise Ship.
Thanks to TYWKIWDBI for reminding me of this book. I may have to read it again this weekend.
Its a great book!