What is the main conflict in Brain Trust by Christopher Golden?

As the story unfolds, spring break is a day away and Jenna and her roommate and best friend, Yoshiko Kitsuta, have plans to travel to Captiva Island near Fort Myers, Florida, for a week of fun, sun and relaxation. Dr. Slikowski, or Slick as everyone calls him, cautions Jenna to enjoy herself and forget about school and her job. Jenna is a serious and driven student and worker who find it difficult to leave her responsibilities behind her.