  == What am I missing? ==  I have read the series of R.A.Salvatore several times, from Homeland and The Canticle through The Two Swords and on to  Promise of the Witch King. Each time I reach this point I know I've missed some content, some book. Promise continues the adventures of Jarlaxle and Artemis Entreri presumably from the Servant of the Shard ending, and yet there are characters and inferences to other material between these two novels. For example, Entreri's personal battle of owning the jeweled dagger that steals the very life essence of its victim. His skin now holds a grey hue from having used the dagger on a Shade. Which text is this in? Athrogate is commissioned to follow the drow and human duo to Bloodstone Village, and speaks as if he is well aware of the prowess of our protagonists from experience. Jarlaxle, and Entreri by association, are now in the employ of two dragon sisters, Ilnezhara and Tazmikella, and yet I feel as if their current relationship could not have been thrown at readers assuming they will take the current situation for given, there needs to be some history that I am lacking.        Please tell me the title of the novel I am missing, I presume containing Jarlaxle and Entreri's dealings with the town of Heliogabalus and the reason The Promise begins with the pair exploring the tower of Zhengyi. I apologize for my ignorance and thank you in advance for any fruitful response.         CMW