I've found, through disappointing experience, that free books in the Kindle store on Amazon are generally awful. Liberally dowsed with typing errors, repetitive phrases and thoroughly disengaging writing- clearly I've read some free publications which have disenchanted me to the phenomenon of free e-books. Rant aside, 'The Glass Wall' was somewhat refreshing.
The storyline was on the whole well thought out with interesting plot twists, and the universe successfully avoided being a generic 'magical world'. The characters were well developed with believable personalities, and I felt that the continuous growth of minor characters and their relationships was smooth and well done- often lesser characters are ignored and then suddenly brought back into the main flow of the story with a sudden burst of intense detail. Adlers relationship development between Sydney, the main female character, and her new foster family were done superbly. The little details, such as the foster mothers addiction to online eBay bidding, were humourous yet avoided the common trap of repetitiveness therefore allowing the characters to develop for the reader without over emphasis. My main criticisms are the fact that I didn't particularly relate to the main character, Sydney, and I found some of the dialogue to be slightly stilted. The descriptions in some places were a bit over the top, for example the makeup of the new neighbours (attempting to avoid spoilers!) became a bit annoying. Looking at other reviews, I think these little critiques vary from person to person, and a personal dislike of boys in makeup shouldn't discourage readers from giving this a go! There was a romance theme ongoing throughout the book, and I was relieved to find it wasn't a 'we met and now immediately we're in true love' plot. The instant love premise has seriously been overdone, and for once I was wanting the flirtation to speed up a little! As it's the first in a series, I feel the author has taken a clever route in slowly developing a relationship whilst hinting at a romance between the main characters rather than rushing it and ruining the credibility.
On the whole this was an engaging paranormal ebook, suitable for older teens and young adults. As 'The Glass Wall' is currently free on Amazon, it becomes more appealing, and lessens the impact of the clear lack of competent editing influence. Unlike many other free books, I finished this quickly and the plot was intriguing which immediately places it far above the majority of free Kindle ebooks.