It did not take long for the High Command in Berlin to learn through its agents in Holland of the impression that was being created in the public mind by Raemaekers' cartoons. The publication of his first series of cartoons in the _Amsterdam Telegraaf_, reflecting the unspeakable horror of the atrocities in Belgium and denouncing with burning scorn the Kaiser and his infamous captains, gave such offense to the "All-Highest" in Potsdam that the German Government offered twelve thousand guilders for his body dead or alive! Further magnificent testimony to the hurt he inflicted on our common adversaries lies in the fact that the German Government, not content with offering a reward for his body, induced the Dutch Government to prosecute him for endangering the neutrality of Holland! He was actually tried on this charge, but although he had not spared the burghers and junkers of his own country for what he considered their criminal laxity in the matter of preparedness and their greed in aiding Germany by the smuggling of foodstuffs, etc., across the frontier, the jury acquitted him and the court tacitly confirmed his right to express his opinions. It was after this that the _Cologne Gazette_ in an editorial addressed to the Dutch people, obviously seeking to intimidate what its government could not suppress, said: "After the war Germany will settle accounts with Holland, and for each calumny, for each cartoon of Raemaekers, she will demand payment with the interest that is her due." German wrath followed him further. His life was constantly endangered at the hands of German agents infesting Holland, and he had to be always on his guard, especially during his periodical excursions into Belgian territory occupied by the enemy. Even before he crossed to England, his wife received anonymous letters warning her that any ship he might sail on would surely be torpedoed. As late as November, 1916, an exhibition of his cartoons in Madrid was forbidden by the Spanish Government upon the insistence of the German embassy in that capital. It is significant to note that these attempted persecutions had an effect directly opposite to that intended. They not only failed to stop the publication of his cartoons but were largely instrumental in drawing the attention of the Allies and neutrals to the great champion that had arisen. For eighteen months his cartoons had been appearing in the Amsterdam _Telegraaf_ without exciting a more than mild interest outside Holland. American and British war-correspondents returning to London from Amsterdam talked enthusiastically of the "Great Raemaekers" and a few stray cartoons appeared in the press of London and Paris. But he was practically unknown outside of Holland until Christmas week in December, 1915, a year and a half after his first war-cartoon had appeared.