Once the King of Aragon was dead, Alaimo did not survive the loathing of James II, who convinced his elder brother Alfonso III of Aragon to hand him over. So on August 4, 1287, Alaimo was entrusted to only one of James's emissaries, Bertrand de Cannellis, who quickly headed back to Sicily. Without yet seeing fulfilled the proper claim to defend himself in a regular process, together with his nephews (including Adenolfo da Mineo), he was put on the ship that was ostensibly going to take him back to Sicily. But, unknown to him, his fate had already been sealed before leaving: when the journey reached its end near Marettimo, he and his nephews were led unawares onto the bridge of the ship, by which time Sicily was already on the horizon. So they saw fulfilled their hope of seeing their homeland again, but right after that was read out the sentence of death pronounced against them by James, which was summarily executed by drowning. Rolled up in sheets and weighted with ballast, Alaimo and his nephew Adinolfo da Mineo were thrown alive into the sea, following the ritual known as mazzeratura.
