Dragon in the System by Cindy Spencer Pape
Computer science professor Eric Gordon has to find the hacker responsible for a virus on campus. When his investigations show some sort of reptile may be living in the steam tunnels under campus, he turns to biology professor Lori Tremain for help.
Lori's life is crazy with her tenure review looming, but she's too curious and way too attracted to Eric to turn down his request. Together, Lori and Eric uncover things that their scientific minds can barely imagine, along with a passion they never expected. She doesn't have time for love or dragons, but adventure and romance find her anyway.