Best Kept Secret by Jeffrey Archer

My reaction to the ending of Best Kept Secret by Jeffrey Archer was literally, "Oh dear God."  Mr. Archer has definitely perfected the art of a cliffhanger.  I can't believe how he ended this one.  It's even more shocking than the first even though I saw it coming.  I still just couldn't believe he went through with it.  This poor family has already gone through so much, and this is only the third book.  I'm not even halfway through the series.  Where on earth can he go from here?  I'm intrigued for sure.  This book mostly focuses on Sebastian Clifton, him becoming a man basically.  But it starts with him getting a sister while he's still young who's more than a sister really.  I'm guessing one of the books to come will be her story to tell.