Pope Francis was in critical but stable condition Tuesday as he worked from the hospital while battling double pneumonia, and the Vatican

Pope Francis is on the mend, showing a slight improvement in his health, which has allowed him to welcome a visit from Cardinal Pietro Parolin. They discussed important matters concerning the Vatican,

Pope Francis on Monday received a visit from Vatican Secretary of State, Cardinal Pietro Parolin, and the Substitute for General Affairs Mons. Edgar Pena Parra at Rome's Agostino Gemelli Hospital, the Vatican press office said in a bulletin on Tuesday.

The Vatican also released Francis' message for Lent, which runs from March 5 to April 17. The message, dated Feb. 6, encouraged Catholics to put themselves in the shoes of a migrant as an “examination of conscience.”

Cardinal Pietro Parolin, Vatican secretary of state, led a recitation of the rosary for Pope Francis on the 11th day of his hospitalization for double pneumonia. About 27 cardinals living in Rome and dozens of members of the Roman Curia joined the prayers.

Eleven days after the pope was hospitalized, speculation is mounting and prayers for his recovery verge on a vigil.

The Vatican has set in motion nightly prayers for Pope Francis in the hope that he might recover and get back to leading the Catholic Church.

Despite his hospital stay, Pope Francis remains in charge of the Catholic Church. But what if his health continues to decline?

The Vatican press office said Cardinal Parolin will lead a rosary for the pontiff in St. Peter's Square at 9 p.m. local time. The U.S. bishops urged Catholics to join that prayer at the same time, 3 p.m. on the East Coast.

The Vatican has detailed laws and rituals to ensure the transfer of power when a pope dies or resigns, but not when he is sick

Pope Francis continues treatment for pneumonia as Vatican launches nightly prayers, approves decrees for saints' canonization.