After remaining in the city for three days, he adopted a disguised dress, passed out of the Crown Gate, and in the course of a few days found a safe retreat in Switzerland.

Peyrol and Icard, two of the Protestant ministers whom the dragoons were ordered to apprehend, also escaped into Switzerland, Peyrol settling at Lausanne, and Icard becoming the minister of a Huguenot church in Holland. But although the ministers had escaped, all the property they had left behind them was confiscated to the Crown. Hideous effigies of them were prepared and hung on gibbets in the market-place of Nismes by the public executioner, the magistrates and dragoons attending the sham proceeding with the usual ceremony.

At Lausanne, where Claude Brousson settled for a time, he first attempted to occupy himself as a lawyer; but this he shortly gave up to devote himself to the help of the persecuted Huguenots. Like Jurieu and others in Holland, who flooded Europe with accounts of the hideous cruelties of Louis XIV. and his myrmidons the clergy and dragoons, he composed and published a work, addressed to the Roman Catholic party as well as to the Protestants of all countries, entitled, "The State of the Reformed Church of France." He afterwards composed a series of letters specially addressed to the Roman Catholic clergy of France.

But expostulation was of no use. With each succeeding year the persecution became more bitter, until at length, in 1685, the Edict was revoked. In September of that year Brousson learnt that the Protestant church of his native city had been suppressed, and their temple given over to a society of female converters; that the wives and daughters of the Protestants who refused to abjure their faith had been seized and imprisoned in nunneries and religious seminaries; and that three hundred of their husbands and fathers were chained together and sent off in one day for confinement in the galleys at Marseilles.

The number of Huguenots resorting to Switzerland being so great,[26] and they often came so destitute, that a committee was formed at Lausanne to assist the emigrants, and facilitate their settlement in the canton, or enable them to proceed elsewhere. Brousson was from the first an energetic member of this committee. Part of their work was to visit the Protestant states of the north, and find out places to which the emigrants might be forwarded, as well as to collect subscriptions for their conveyance.

In November 1685, a month after the Revocation, Brousson and La Porte set out for Berlin with this object. La Porte was one of the ministers of the Cevennes, who had fled before a sentence of death pronounced against him for having been concerned in "The Project." At Berlin they were received very cordially by the Elector of Brandenburg, who had already given great assistance to the Huguenot emigrants, and expressed himself as willing to do all that he could for their protection. Brousson and La Porte here met the Rev. David Ancillon, who had been for thirty-three years pastor at Metz,[27] and was now pastor of the Elector at Berlin; Gaultier, banished from Montpellier; and Abbadie, banished from Saumur—all ministers of the Huguenot Church there; with a large number of banished ministers and emigrant Protestants from all the provinces of France.

The Elector suggested to Brousson that while at Berlin he should compose a summary account of the condition of the French Protestants, such as should excite the interest and evoke the help of the Protestant rulers and people of the northern States. This was done by Brousson, and the volume was published, entitled "Letters of the Protestants of France who have abandoned all for the cause of the Gospel, to other Protestants; with a particular Letter addressed to Protestant Kings, Electors, Rulers, and Magistrates." The Elector circulated this volume, accompanying it with a letter written in his name, to all the princes of the Continent professing the Augsburg Confession; and it was thus mainly owing to the Elector's intercession that the Huguenots obtained the privilege of establishing congregations in several of the states of Germany, as well as in Sweden and Denmark.

Brousson remained nearly five months at Berlin, after which he departed for Holland to note the progress of the emigration in that country, and there he met a large number of his countrymen. Nearly two hundred and fifty Huguenot ministers had taken refuge in Holland; there were many merchants and manufacturers who had set up their branches of industry in the country; and there were many soldiers who had entered the service of William of Orange. While in Holland, Brousson resided principally with his brother, a banished Huguenot, who had settled at Amsterdam as a merchant.

Having accomplished all that he could for his Huguenot brethren in exile, Brousson returned to Lausanne, where he continued his former labours. He bethought him very much of the Protestants still remaining in France, wandering like sheep without shepherds, deprived of guidance, books, and worship—the prey of ravenous wolves,—and it occurred to him whether the Protestant pastors had done right in leaving their flocks, even though by so doing they had secured the safety of their own lives. Accordingly, in 1686, he wrote and published a "Letter to the Pastors of France at present in Protestant States, concerning the Desolation of their own Churches, and their own Exile."

In this letter he says:—"If, instead of retiring before your persecutors, you had remained in the country; if you had taken refuge in forests and caverns; if you had gone from place to place, risking your lives to instruct and rally the people, until the first shock of the enemy was past; and had you even courageously exposed yourselves to martyrdom—as in fact those have done who have endeavoured to perform your duties in your absence—perhaps the examples of constancy, or zeal, or of piety you had discovered, might have animated your flocks, revived their courage, and arrested the fury of your enemies." He accordingly exhorted the Protestant ministers who had left France to return to their flocks at all hazards.