Martina Crowe was a Messenger from the L.I.V.E. She became an Executive before Mr. Curtain was forced to close his "school". In the story, she passionately hates the members of the Mysterious Benedict Society. In the 2nd book of the series, she seems to be the boss of the Ten Men. But in the end, Mr. Curtain leaves her while he escapes. Greatly angered by this, Martina tells Mr. Benedict all she knows about Mr. Curtain's plans. This could've been an advantage, but Mr. Curtain hadn't trusted her much, so he never told her much.