Sally Rooney says her books may become unavailable in the UK because of her advocacy for Palestine.

Sally Rooney’s books, both new and old, may be unavailable in the UK due to the government’s aggressive action against those who are speaking out and taking action against Israel’s genocide in Palestine.

Rooney, the bestselling Irish novelist and Millennial Bard, spoke in front of a UK court last week as part of a legal challenge to the government’s proscription that the direct action organization Palestine Action is a terrorist group. The group’s co-founder Huda Ammori brought a legal challenge to the designation, aiming to have this designation reversed. Tomorrow is scheduled to be the final day of the judicial review.

Rooney spoke in favor of the group before the court, reaffirming her commitment to defending them.”I myself have publicly advocated the use of direct action, including property sabotage, in the cause of climate justice,” she said. “It stands to reason that I should support the same range of tactics in the effort to prevent genocide.”

Rooney told the court about the tremendous impact the government’s decision will likely have on her work. She said that it is “almost certain that I can no longer publish or produce any new work within the UK while this proscription remains in effect.”

“If Palestine Action is still proscribed by the time my next book is due for publication, then that book will be available to readers all over the world and in dozens of languages,” she continued, “but will be unavailable to readers in the United Kingdom simply because no one will be permitted to publish it.”

And since her royalty payments are also under scrutiny, she said that this designation could affect her other books too, and that they may have to be pulled from bookstores. Since Rooney has vowed to give any royalties to Palestine Action, she and others understand the law to mean that anyone paying her is at risk of a terrorism offense themselves.

“It is therefore unclear whether any UK company can continue to make payments to me,even when it had agreed to do so,” she concluded.

Despite all this, Rooney has not backed down from supporting Palestine Action, which she has called “courageous and admirable.” Palestine Action directly targets arms manufacturers and military supplies, among other actions, to disrupt “gross abuses of international law.” This activity includes destroying or disabling weapons and property, which upset the UK government enough to crack down.

Even though denouncing Palestine Action “would be more convenient to me personally and professionally,” Rooney has vowed to continue supporting the group. This careers the personal risk of arrest—Rooney avoided traveling to the UK to receive an award this September over this fear.

But Rooney warned the court, and the world, that the suppression of her writing is more than just a career inconvenience: “The disappearance of my work from bookshops would mark a truly extreme incursion by the state into the realm of artistic expression.”