A Gallagher Wedding is a short story that takes place shortly after United We Spy. It was included in special limited editions of the book until Ally made it publicly available on her website in 2022.
The story follows Cammie on the day of her mother's wedding to Joe. It opens to Cammie getting ready in the P&E Barn with Bex and Liz while Macey gives out orders on the lawn. The old Gallagher Academy is being rebuilt and white tents fill the grounds untouched by the explosion. Abby arrives to let Cammie know her mom is asking for her, and she follows Abby to the office where Rachel is getting ready. After a short heart-to-heart, they are interrupted by Macey, who Cammie then pulls out of the room. She quickly distracts Macey and then notices Zach waiting for her in the barn. The two walk to where the mansion once stood, now covered with scaffolding and tape. Cammie goes through the plans for the rebuilding of the Academy, and the two kiss as sunset approaches and the light changes. Liz calls them over as Rachel, Bex and Abby start to make their way to the gardens. Joe waits in front of the crowd with Townsend as his groomsman. As the maid of honour and best man, Cammie and Zach walk arm-in-arm to the ceremony.