She was the one who revealed to Cassandra McAdams that The Red Tazelwurm had taken the second key, finding that out by VP Victoria's files. In "The Hydra" Kerrigan first went to find the Book and failed to do so before the Council arrival. Later she took chances and attempted to open the Antiquis Triangulum using the two keys the Council has recovered. Because she did it incorrectly the Pyramid's shockwave put her into a coma-state, akin to Niles Peg before her. She is seen being shipped to Coral Grove in "Pyramid Scheme", then at Coral Grove with Finnwich and Lynch Webber in "Mannifestum Rising".
Much like her Council partners, Kerrigan appears headstrong and persistent in achieving her goals. She is often sarcastic and vocal about the plans she doesn't believe in, like the ones Fatious comes up with, and is more than ready to suggesting her own solutions to problems. Kerrigan does have her more uncompliant and stubborn side, as seen with her countless arguments with Fatious. More than anything she desires to be "a part of history", that is what drives her to open the Antiquis Triangulum herself and learn its secrets.