It was in January 1770, whilst Weeden and Smith were still debating vainly on what, if anything, to think or do about the whole bewildering business, that the incident of the Fortaleza occurred. Exasperated by the burning of the revenue sloop Liberty at Newport during the previous summer, the customs fleet under Admiral Wallace had adopted an increased vigilance concerning strange vessels; and on this occasion His Majesty’s armed schooner Cygnet, under Capt. Charles Leslie, captured after a short pursuit one early morning the scow Fortaleza of Barcelona, Spain, under Capt. Manuel Arruda, bound according to its log from Grand Cairo, Egypt, to Providence. When searched for contraband material, this ship revealed the astonishing fact that its cargo consisted exclusively of Egyptian mummies, consigned to “Sailor A. B. C.”, who would come to remove his goods in a lighter just off Namquit Point and whose identity Capt. Arruda felt himself in honour bound not to reveal. The Vice-Admiralty at Newport, at a loss what to do in view of the non-contraband nature of the cargo on the one hand and of the unlawful secrecy of the entry on the other hand, compromised on Collector Robinson’s recommendation by freeing the ship but forbidding it a port in Rhode Island waters. There were later rumours of its having been seen in Boston Harbour, though it never openly entered the Port of Boston.
This extraordinary incident did not fail of wide remark in Providence, and there were not many who doubted the existence of some connexion between the cargo of mummies and the sinister Joseph Curwen. His exotic studies and his curious chemical importations being common knowledge, and his fondness for graveyards being common suspicion; it did not take much imagination to link him with a freakish importation which could not conceivably have been destined for anyone else in the town. As if conscious of this natural belief, Curwen took care to speak casually on several occasions of the chemical value of the balsams found in mummies; thinking perhaps that he might make the affair seem less unnatural, yet stopping just short of admitting his participation. Weeden and Smith, of course, felt no doubt whatsoever of the significance of the thing; and indulged in the wildest theories concerning Curwen and his monstrous labours.