In 2375, Solbor accompanied the kai to Deep Space 9, as she had taken it upon herself to officiate at Benjamin Sisko and Kasidy Yates' wedding. While they were there, Gul Dukat, disguised as Bajoran farmer Anjohl Tennan, tricked Solbor into letting him see the kai. Dukat visited the kai again, once during the night, as part of his scheme to release the Pah-wraiths. Solbor was irked at Anjohl's presence. (DS9: "'Til Death Do Us Part")
Soon after, Solbor accompanied Winn and Anjohl back to the kai's office. Going over her schedule, he was surprised when she canceled an appearance at a meeting of the Vedek Assembly.
Solbor was later sent to obtain the Book of the Kosst Amojan. This deeply worried him, telling the kai that the book was evil. He vented his anger towards "Anjohl", questioning Anjohl's motives.
Later, Solbor began bringing more and more books about the Pah-wraith, unaware of the fact that Dukat and Winn were trying to reveal the invisible words of the Book of the Kosst Amojan. After the kai fell asleep, Solbor began removing the books, but was happened upon by Dukat, who attacked him. Solbor then left the room.
Confronting them, he informed the kai of Dukat's identity and realized that she was trying to release the Pah-wraith. As he turned to leave, about to expose their betrayal of the Prophets, Winn stabbed him in the back, killing him. Shocked at what she had done, she attempted to destroy the Book of the Kosst Amojan. As Solbor's blood dropped onto it, a burst of flames leapt from it, revealing the text. Dukat later disposed of Solbor's body. (DS9: "The Changing Face of Evil")
Several days later, a high level Bajoran security official came to see Kai Winn. She pleaded with the official to find Solbor. After he left, Dukat praised her lie, telling her he almost believed her. The kai retorted "how like a Cardassian to find amusement in an old man's death." (DS9: "When It Rains...")