In short: Though I really wanted to like Masque of the Red Death by Bethanny Griffin, I couldn't get past the seriously TSTL protagonist. 
 Though I have not read The Masque of the Red Death by Edgar Allan Poe - and so cannot speak to the specifics of how well this book was adapted - I think Bethany Griffin manages to replicate the dark and creepy atmosphere present in all of his stories quite well in her own adaptation. Death and horror are present in abundance in Masque of the Red Death, as is inevitable in a story where a horrific plague has decimated the population. There were also some elements of steampunk, which combined with the dystopian-horror genre, created these sort of strangely and darkly beautiful images of ladies in corsets and porcelain masques and steam carriages and hot air balloons. 
 Unfortunately, and though I really, really wanted to like Masque of the Red Death because it very much seemed like my kind of book, I found much more fault with it than I liked it. The plot was a bit too reminiscent of The Chemical Garden Trilogy (Wither, Fever) by Lauren DeStefano. A dystopian world with a population decimated by illness, a girl with a twin brother and a scientist parent trying to find a cure, ways of avoiding the reality of life for the rich and complete hopelessness for the poor, and an overall dark and dismal atmosphere. I read so many dystopians that admittedly, many of them start to blend together, but I was still looking for more originality in Masque of the Red Death to really make it a great read. 
 The worst offense of Masque of the Red Death though is protagonist, Araby, who is Too Stupid To Live in the biggest and baddest way. Some of her TSTL moments include - but are not limited to - blindly following and betraying her family for a guy she just met without questioning who he is or what his motivations are, accepting a drink from the seriously evil Prince Prospero without thought and ending up poisoned, and falling for a guy who in one moment is holding her suspended over croc-infested waters, threatening her life, and in the very next second is confessing his love for her. I wanted a heroine to root for, to take control of the situation and to independently think on her own, and though I got a few glimpses of that girl, she was sorely lacking throughout the majority of the novel. 
 I really dislike writing negative reviews for books where the popular opinion is overwhelmingly positive; it makes me feel like maybe I am missing something, maybe I got this wrong. Still, I stand strong in my dislike of Araby, who pretty much ruined the novel for me. If I had to recommend Masque of the Red Death to anyone, I would say it may be liked by fans of Lauren DeStefano's Chemical Garden Trilogy. And of course, I recommend reading other reviews because even though Masque of the Red Death wasn't the book for me, it clearly was for most reviewers.