After long-term treatment in sanatoriums in Zakopane, Vienna Woods and Davos he returned to Grabków, but the consequences of the disease were to accompany him for the rest of his life.

He did journalism in the magazines such as the ABC daily and the Prosto z mostu artistic and literary weekly edited by the national activist and journalist Stanisław Piasecki with whom he was friends with.

At that time, he began studies in Paris on the history of Western Slavs in the early days of Poland and the Middle Ages, which he used in his later work.

This work, which at Grabski's request was not related to remuneration, continued in the newly created Ministry of Regained Territories.

In June 1955, a peer court of the Union of Polish Writers deleted him from the list of members for writing an unpublished Catholic Ballade, which was impressed by Konstanty Ildefons Gałczyński, with whom he had been friends since the time of cooperation with Prosto z Mostu.

In support of the ruling, it was stated that the ideological atmosphere of the song was "deeply contradictory to humanistic ideas" in force in the Związek Literatów Polskich (ZLP) and "works to violate the patriotic unity of our nation".

The trial was a great shock for Grabski, traces of which can be found in the introduction to the Scar of Childhood and in the poem To a friend of Ballada, published in the volume of poetry Świat na podararu (1958).

During his several months in hospital, the political climate in Poland began to change and in June 1956, the plenum of the Polish People's Party reactivated him as a member, however, he did not see rehabilitation.

During his first stay in the Union after a break, in September 1956, at the election meeting of delegates, he advocated for imprisoned Primate Stefan Wyszyński.

During his stay in France, he published a volume of sonnets "Three Wreaths" by the Polish Society of Book Friends in Paris.

The first novel, Brothers, who initiated the three-volume series, presenting critically the political situation in Poland in the period from the assassination of President Narutowicz to the time after the May Revolution.

Among other things, a text describing the meeting of President Stanisław Wojciechowski with Józef Piłsudski on the Poniatowski Bridge during the May Coup in 1926.

He also wrote several novels in episodes under pseudonyms, including in Dziennik Poznański, the crime story Bloody Traces, and under his own name Rust of life, which, however, he did not later publish in book form due to anti-Semitic accents appearing in it and in the meantime.

It was opened by the novel In the Shadow of the Collegiate Church, published in 1939, which was reissued many times after the war, and became a representative of Polish Catholic literature.

He prepared a new, revised edition of three hundred cities returned to Poland in 1960, and a small short story Tartak started (1961).

His last book Childhood Scars, an autobiographical tale brought about by the outbreak of World War I, which appeared in 1971, a few months after the author's death.