Yeah! Web tech for the win! My heart is always bleeding, when I ready about HTML5 games - and all that makes them "HTML5" is the Canvas API. There is sooo much goodness in JS, CSS and HTML - it is a truly beautiful liaison of technologies.
About the books, I left a note in this comment here (they spawn fairly late): https://itch.io/post/5743406 So if you want to give it another try, looting town at least 4 times or so is needed to find the first book. (Secret hint: Don't throw away the tape, it will be needed ;-) )