 In 2000, Adair published "Kiss and Tell", the second of what was to become her popular T-FLAC series with Ballantine.The series involves operatives in Terrorist Force Logistical Assault Command (T-FLAC), a fictional secret counter-terrorist force.In 2007, she added a new "psi unit" to the T-FLAC series, where the T-FLAC operatives have wizard powers, taking them into the subgenre of "paranormal romance" with her award-winning Edge trilogy.