Alonsus Faol graciously welcomed King Anduin Wrynn when Prophet Velen and Moira Thaurissan brought him to the Netherlight Temple to recruit the Conclave in their mission to restore Azeroth from Sargeras' destruction. Alonsus' warm and friendly demeanor changed Anduin's perceptions of the undead and he came to see the Forsaken as just ordinary people in another form. Alonsus also introduced Anduin to his friend Calia Menethil. After the Alliance leaders addressed the Conclave about the plight of Azeroth and recruited them to their efforts, Alonsus commended Anduin for his leadership and as a fellow priest, invited him to take part in Conclave affairs whenever he wished.

Alonsus was doing his part in organizing the healing efforts by traveling to Horde cities and spurring them to support their cause. When King Anduin returned to Netherlight Temple to discuss with Faol and Calia the progress of their mission, Anduin transitioned the conversation to be about his plan to formalize a Gathering between the Forsaken and their human loved ones. Anduin sought to enlist Alonsus' aid in his endeavors. However, Alonsus had doubts of the two races' ability to move past their prejudices or theirs to overcome the obstacles that sought to oppose such a unity. Yet with Calia's urging, Alonsus agreed to work with his fellow priests to lay the groundwork for the event. He later traveled to the Undercity to relay King Anduin's missives to Vellcinda Benton and Warchief Sylvanas Windrunner, which concerned the proposal of the Gathering. When Nathanos Blightcaller reproached Alonsus for fraternizing with the Alliance High King, Faol claimed he was politically neutral as he was not a member of the Horde, but a simple priest of the Light. He remained in the Undercity for a few days to address any questions or concerns about the Gathering. According to Blightcaller, at one point he suggested that Faol pledge fealty to Sylvanas and the Horde, but the archbishop demurred, saying he preferred "'to serve the Light rather than kings or queens.'"