A long-buried secret. A stolen portrait. The artist's murder. Can Sherlock discover the connection between the three before he's stopped permanently?

Sherlock can't shake his apprehension about a family trip to Paris. His mother's unflappable confidence vanished months ago, and her anxiety has set the whole family on edge. His greatest fears are realized when they witness the death of one of Mrs. Holmes' former suitors. As Sherlock seeks to unravel the reason behind the artist's murder, he unearths a long-buried secret about his mother and survives several attempts to keep him from getting to the truth. Can he bring a killer to justice before he's buried with these hidden secrets forever?