The curse of Louis XVIII indeed came true, as revolution erupted in Paris in July 1830, leading to Charles X's abdication and exile to Britain with his family.
However, at least until 1830, he enjoyed several comfortable years as an absolute monarch.
For Gizo, the years from 1820 to 1830 were his most challenging decade.
He returned to academia, immersing himself in scholarly pursuits, promoting his ideas to students and the broader society, and published numerous historical works.
"The Origin of European Parliamentary Systems," "Introduction to French History," "Memoirs on the English Revolution," "History of the 17th Century English Revolution" were all works of this period, and merely from Gizo's choice of topics, one can discern what he aimed to convey.
Everyone knew he was a dissenter against the current government, but Gizo never advocated using violence to overthrow it; he steadfastly held the view that lawful struggle was the best path to solve problems.