Books in Star Wars: Jedi Apprentice series

Qui-Gon and Obi-Wan must protect the only witness willing to testify against a powerful crime family - even as the stakes are raised sky-high.Qui-Gon Jinn's heart is not in his work. After the death of his truest love, he is finding it hard to continue as a Jedi Knight. When he and his apprentice Obi-Wan are sent to a hostile planet to protect the only witness willing to testify against an evil crime family, he finds it hard to focus. But when the witness is suddenly under attack and the crime family makes a move to ensure its survival, Qui-Gon must keep the peace...and fight both the foes who attack and the enemies within.