Seeking fellowship with other reform-minded people, the radical group wrote letters to Martin Luther, Andreas Karlstadt, and Thomas Müntzer. Felix Manz began to publish some of Karlstadt's writings in Zurich in late 1524. By this time the question of infant baptism had become agitated and the Zurich council had instructed Zwingli to meet weekly with those who rejected infant baptism "until the matter could be resolved". Zwingli broke off the meetings after two sessions, and Felix Manz petitioned the Council to find a solution, since he felt Zwingli was too hard to work with. The council then called a meeting for January 17, 1525.