Starting in 1900, they jointly published Zion’s Watch Tower under the Danish name Zions Vagt-Taarn.

However, Sophus Winter began drifting from the truth. He ceased publishing Zions Vagt-Taarn in the fall of 1901, and in the course of 1902-3, he fell into the darkness of false religion.

In October, Carl took the initiative to publish the Watch Tower in Danish again, and from July 1904 it was issued regularly each month.