WTF!?! That was the most abrupt, middle of a scene ending there is. Yea, that doesn't work for me. at. all. 
 This book was okay. The characters were interesting and I'm definitely interested in reading more about the main characters, as well as the secondary characters that were introduced. For bdsm, this is pretty darn PG and bland but there was so much more going on in the club that I'm sure we will see more of in the subsequent books of this series. 
 This entire book is only two different nights, one week apart, at the club. I think it would have been more interesting and exciting if we got to see more of what Z was up to. One thing in particular was the big issue that happened in the dungeon on the second night. Zachary had to leave Jessica for a bit to go handle something bad that was happening. All we got to know was what happened while Jessica waited for him. It would have been far more interesting to know what transpired in the dungeon requiring immediate intervention. Alas, we mostly just got what affected Jessica directly. 
 Overall, I give Club Shadow Shadowlands 2.5 - 2.75 stars.