In the heat of the struggle no attention had been given to the mooring of the boat in which Ladylands and his accomplices had come across. Not till the skirmish had ceased was it discovered that it had drifted out to sea, bearing with it the Laird's "coffers" and the important documents that they were believed to contain. This untoward accident, however, delayed the clearing up of the plot for but a short time. A few days later the masterless craft was picked up off South Annan. In Ladylands' coffers were found, as had been expected, letters which revealed the whole extent and importance of the treasonable scheme in which he had been engaged.

It appeared "that the conspiracye to have been accomplished by the takinge and forcinge of Ailsa was devysed by the larde of Ladylands, Corronall (Colonel) Hakerson, and the Spanish Ambassador".

On the previous October the three conspirators had met at the town of Nantes, in France, for the purpose of considering the details of their bold undertaking of enlisting the men, and raising the funds necessary for carrying it out. In order to secure the co-operation of those who, had they known the size and position of Ailsa Craig, might have felt considerable doubt as to the advantages to be derived by obtaining possession of it, the rock "was termed the island of Guyanna, and given out as very fertile and commodious for fishinge, but inhabited by barbarous people, and ance possessed, not recoverable be noe enemy out of the hands of men of warr".

To meet the expenses of the enterprise "ther was contribution promised by sondry noblemen of Fraunce, and of Englande, and of Scotland". The agents to whom the task of levying the "contribution" was entrusted were Hakerson in France, Richard Skeldon in England, and in Scotland Ladylands himself. It was arranged that Ladylands should, in the first place, get possession of the island, and then send William Liddell to Spain "with message of their interpryse, and to crave mony and furnishing".

The papers also gave further details of the special objects which the conspirators had in view. In the first place, it was intended to "sett upp and manteyne ane publique masse in this Islande, quhilk should be patent (open) to all distressed papists, where fra so ever they should come". Next to this, there was to be "ane place of releife and refreshment to the Spanyart, or rather a porte to them, at ther arryvall in Ireland". Finally, it was a part of the plan to establish "ane storehouse to keip furnishing and all things profytable to the use of the Erle of Tyrone, with the quhilk Erle, Ladylands, by his commissioners, had been buissy sen his last coming to Scotland".

It may be incidentally mentioned that amongst those who lent their support to Barclay's wild scheme, there was one who possesses another and a better claim to be remembered. It was the author of The Cherrie and the Slae. In the Acts of the Privy Council[270] it is recorded that Alexander Montgomerie, brother of the Laird of Heslott (Hasilhead), having failed to appear to answer for being art and part with the late Hew Barclay of Ladylands in the treasonable enterprise for the taking of Hisha for the use of the Spanish army, was denounced as a rebel, on the 14th of July, 1597.

Even after the failure of the first part of the plot and the death of Ladylands, it was deemed advisable to provide against the possibility of further surprise on the part of "some practysers for Ireland whose eyes were espyed to be sett uppon the place". But, singular as it must appear, the Scottish Government, or rather the Scottish King, still remained inactive. It was through English influence that the necessary measures of safety were adopted. Bowes, the English agent, "spoke with and moved the Erle of Cassilis", obtaining from him a vague promise "to gyve regarde to yt". As this, however, only resulted in entrusting the custody of Ailsa to Thomas Hamilton, whom Bowes considered "not very fytt for the charge", recourse was again had to the indefatigable Andrew Knox. He readily undertook "both to awayte uppon the further progress of the surpryse, and also to prevent the interpryse in dewe tyme and sorte as before had been performed". It does not appear, however, that the Paisley minister had further occasion to sally forth hurriedly from his residence, at No. 25 in the High Street, and to display his energy for the protection of Ailsa. The whole plot had really collapsed with the death of the prime mover, the bold and unscrupulous Laird of Ladylands.

Not the least singular part of the whole episode is the treatment of Andrew Knox. Far from securing for him the favour of the Court, his "action against the papists and practysers for Spayne" brought upon him the ill will of some of the most influential nobles in the realm. It was officially reported by Bowes, who acknowledged that he himself had been "alwayes privye with him in these affayres", that he had "entred into dangerous feuds by his commendable behaviour", and that "his lyfe was gredely sought by many and strong persons". The agent's recommendation that he "should be tymelye and favorablie comforted" was doubtless acted upon, and it may be looked upon as the result of the interference of the English Government that the Privy Council, "by direction given by His Majesty in his letter from Striveling upon the 6th of June", issued a proclamation which recognized Knox's conduct "to have been loyal and good service done to His Majesty and the country", and warned all persons, under pain of treason, against "troubling" any of those concerned in the expedition which had resulted in the death of the Laird of Ladylands.[271]

With this one episode the history of Ailsa Craig seems to have begun and ended. There is no trace of its connection with the political events of any previous or subsequent period.