– Nina Locke, Crown of Shadows #1
Often, when Rendell drank, he would tell Nina that if anything were to happen to him, she and the children should move to Keyhouse, where they would be safe. Nina herself was an alcoholic, though she did not admit it or pursue any support.
Sam and Al followed the Lockes to their summer home in Willits. Nina was raped by Al, while Rendell was killed by Sam. Sam was eventually subdued by Tyler, and Nina was able to kill Al with a hatchet.
Following Rendell's request should anything happen to him, the family then moved to Keyhouse.
Welcome to Lovecraft
Shortly after moving to Keyhouse, Bode Locke discovered the Ghost Key. Though he tried to share his finding with his family, nobody believed him. When he drew pictures about it at school, Nina was contacted by Bode's teacher. Believing it to be Bode's way of coping with his father's death, Nina did not discourage him, but asked that he not talk about it at school.
Nina continued drinking heavily. She was eventually warned by Detective Daniel Mutuku that Sam Lesser had escaped custody. Nina purchased a gun, telling Tyler and Kinsey it would be in her nightstand if they ever needed it.
When Sam arrived at Keyhouse, he locked Nina and Duncan in the cellar. When he dragged Tyler there, demanding to know the locations of the Anywhere Key and the Omega Key, Nina said they were in her room; an indication to Tyler to get Nina's gun.
Though his attempt ultimately failed, Tyler inadvertently used the Ghost Key to become a ghost, and was able to disarm Sam by catching him off-guard. Kinsey was able to steal Sam's gun, and shoot him. Though Sam escaped upstairs, he was paralyzed by Dodge, and then thrown through the Ghost Door, stranding him in Keyhouse without a body.
A few weeks after Sam Lesser's attack, the Lockes resumed settling into life at Keyhouse. During this time Nina seemed to become perfunctory. Duncan was eventually forced to return to his job in Provincetown, causing him to leave.
After Bode Locke discovered he could use the Head Key to open his head up, Tyler and Kinsey were horrified. Nina entered to investigate the noise, but was unable to see the reality of Bode's head being opened. Simply telling him not to "do that with [his] head", she left the room.
Crown of Shadows
One night, Nina was awoken by the sound of Sam, fighting Dodge for control of his body. In the struggle, Dodge dropped the keys in his possession, and grabbed what he could, using the Anywhere to escape before Nina could discover him. However, she was able to find the Echo Key that he dropped in the struggle. Remembering Sam's demand for old keys, she handed the key over to Daniel Mutuku. She left the kids home alone at night, as she went to visit Duncan, while his partner, Brian, was recovering in the hospital. When she got back, she found the house a mess, not knowing the house was attacked by Dodge and his shadows. Instead, the kids made her think that the place was trashed, when they invited some friends over.
Nina began slipping further into alcoholism. Bode eventually came to her, hurt after trying to reach for something in the bathroom. Nina took care of him and reach for the object, finding the Mending Key. She used it on the Mending Cabinet, showing it was not magical. In her drunk state, she threw her broken cane into the Mending Cabinet, and when she opened it again, the cane was completely fixed. She began testing other broken objects as well, finding out the cabinet fixed broken things. Finally, she attempted to use it to restore Rendell Locke by placing his ashes in the cabinet. After leaving the room and getting changed, she approached Tyler, believing it to be her husband. Nina became hysterical after realizing it hadn't worked, and during the altercation, Rendell's urn was shattered.
Keys to the Kingdom
Nina soon decided to get sober, and Tyler helped her dispose of the alcohol in the house.
When Dodge, inhabiting Bode Locke's body, prepared to leave for the Drowning Cave to execute his plan, Nina tried to stop him from leaving, saying it was too late for Bode to be out. Dodge responded by using the Shadow Key to make the shadows force Nina to drink.
When Kinsey returned home after prom, she found Nina on the floor, drunk. Kinsey told her mother that she hated her, and left for the party at the Drowning Cave.
Nina tried to call for help, but struggled to get to the phone. She was able to hear the real Bode's ghost, whose encouragement gave her the strength to reach the phone. She called Detective Daniel Mutuku for help.
Daniel eventually arrived, and brought in Tyler Locke, who had been accidentally shot in an incident with the shadows. Nina was able to recall the effects of the Mending Key, and had the detective put Tyler in the cabinet. When Tyler emerged, healed, Nina tearfully hugged her son.
Nina was nearly killed by a shadow resembling Al Grubb, but was saved by Daniel, who used Nina's crutch as a torch. Daniel was killed moments later by the Centurion shadow.
Nina continued to flee the manor, eventually making it to Daniel's car, where she was able to rescue Rufus Whedon from an attacking shadow. She apologized to him for his being sent to a psychiatric ward for trying to stop Dodge. The pair eventually fell asleep in the car.
When Nina awoke, she found Rufus dragging Dodge to the Wellhouse. He used the Echo Key and carried Dodge through the door, seemingly killing him. Nina rushed to Bode's lifeless body, and mourned with her family. At Bode's funeral, Kinsey checked on Nina and Nina assured her daughter she wasn't going to drink because didn't want to push her family away and the two shared their memories of Bode. Eventually, Nina and her family arrive, at Tyler's request, to meet them at the remains of Keyhouse, to find Bode now alive and well. During a tearful reunion, Bode explained about his adventure with the Keys and Dodge and such, including Rufus's role in ridding them of Dodge for good, Nina agreed with Bode to make Rufus a member of the Locke family.
- Locke & Key: Keys to the Kingdom #5, "Detectives - Part 1". March 2, 2011
- Locke & Key: Welcome to Lovecraft #1. February 20, 2008
- Locke & Key: Omega #1, "Our Regrets". November 14, 2012
- Locke & Key: Welcome to Lovecraft #4. May 14, 2008
- Locke & Key: Welcome to Lovecraft #2. March 12, 2008
- Locke & Key: Welcome to Lovecraft #3. April 9, 2008
- Locke & Key: Welcome to Lovecraft #5. June 11, 2008
- Locke & Key: Welcome to Lovecraft #6. July 30, 2008
- Locke & Key: Head Games #2, "Chapter One". February 4, 2009
- Locke & Key: Head Games #3, "Chapter Two". March 4, 2009
- Locke & Key: Crown of Shadows #6, "Beyond Repair". July 14, 2010
- Locke & Key: Omega #2, "The Soldier". December 19, 2012
- Locke & Key: Omega #3, "Last Dance". February 20, 2013
- Locke & Key: Omega #4, "Human Sacrifices". April 3, 2013
- Locke & Key: Omega #5, "The Fall". June 5, 2013
- Locke & Key: Alpha #1, "Omega & Alpha", September 11, 2013
- Locke & Key: Alpha #2, "The End", December 18, 2013