Top Ten Tuesday: Just can't finish what I started

A feature hosted by The Broke and the Bookish. 

This weeks topic: Top Ten Series I Haven't Finished:

 

Pretty Little Liars by Sara Shepard: I read the first few books in the series, but they couldn't hold my interest. Honestly, they aren't as well written as the TV series. I ended up selling back all the books in the series. From now on, I just plan on sticking to the TV series.

The Dark and Hollow Places by Carrie Ryan: I've read the first 2 books in this trilogy. While they are solidly good zombie reads, they are very dark. I have to be in the right mood to read them. This book has been on my TBR pile since its release.

Underworld by Meg Cabot: I read the initial book in this series, Abandon. It was a great book, but Aimee Carter's Goddess Test series has the same concept, but is executed a little better...This takes away some of my interest in Cabot's Underworld series. I still plan on reading this book, however. 

Prophecy of the Sisters by Michelle Zink: I read the first book in this trilogy and purchased the other 2, but have not read them yet. While I enjoyed the book, it had a rather slow reading pace. I still plan on finishing this series, but have to be in the mood for a good Gothic novel.

 

Grave Sight by Charlaine Harris: I read the first 2 books of this series after polishing off Harris' Sookie Stackhouse series (at least what was available at the time). This series just doesn't hold my interest as well. I ended up selling back the books I had bought in this series. Honestly, I believe that Harris should have ended the Sookie series with book #9 Dead and Gone. I read #10 Dead in the Family and there's not much left to the overall story arc. I haven't read any good reviews of the subsequent books in the series, and haven't had any desire to pick them up either.

Timepiece by Myra McEntire: I remember reading the first book in this series, Hourglass. I devoured it. However, I remember the story taking a kind of weird turn towards the end. I still plan on reading this one, but it isn't on the top of my TBR pile.

Once Dead, Twice Shy by Kim Harrison: So I've only read the first book in this series. Again, I remember devouring it, but the story took an odd turn towards the end. Reviews of the subsequent books in the series weren't stellar. I tried reading the second book, but couldn't get into it. 

Birhtmarked by Caragh M. O'Brien: I read the first book in this series. I liked it, though I remember pacing being a bit slow. I still plan on reading the remainder of this series.

Dreamless by Josephine Angelini: So I remember reading the first book in this series, Starcrossed. I remember enjoying it quite a bit. The mythology and world-building were superb. What tripped me up was the romance...it was so over the top. I still plan on reading this book, but am waiting for the right mood to hit.

Matched by Ally Condie: I remember devouring this book. Again, what tripped me up what the over the top romance. I also think I read some less than savory reviews of the sequel Crossed. However, I still plan on finishing this series. I am curious to see what happens!

What series have you started, but haven't finished?