The teen numbers among the Prescot books were among the absolute best in the series, but I loved the whole series and have read every one published in English, as well as a couple the ones in ebook toward the end of the series that have been released.
If you are a John Carter of Mars fan or enjoy the "displaced person on another world" then this series is for you. The books run in long story arcs so you can read just a few to complete a plot line or go for the whole set. Akers creates a very complex world for the hero to adventure in. Recommended