Her expertise, it appears, comes from her estranged father, who was, in fact, LeMarque himself, a negative legacy Isabel seems to want to break away from. However, she loved Rusty too much to give him up – before he runs off. At their next meeting, when Rusty’s in Amsterdam doing a job with the Ocean crew, she is much less forgiving, and eventually chases the men all the way to Rome.
While in Rome, Isabel was assigned to investigate for the Bulgari Case. Using Form 1077, an official request for supplementary aid, the investigation uncovered evidence incriminating Rusty.