a druid named Nuca at Corcomroe, who tells him how to find the murderers. Máel Dúin and his foster brothers Shortly after Máel Dúin and his crew set off on their voyage, they came across the harbour of his three stepbrothers. They call out to Máel Dúin, in hopes that Máel Dúin would allow them to enter his boat. Knowing he could not exceed the number of people on his boat per the druid's advice, Máel Dúin responds, "Get you home, for even though we should return (to land), only the number we have here shall go with me." Upon hearing Máel Dúin's call, his foster brothers cried out, "We will go after thee into the sea and be drowned therein, unless thou come unto us." Suddenly the foster brothers jumped out into the sea and began swimming far from land. Máel Dúin turned his boat around and allowed them on board, violating the number of allotted people on his boat. They first encounter two bare islands with forts on them. From the forts can be heard "noise and the outcry of drunkenness." Máel Dúin then hears one man say, "It was I who slew Ailill Ochair of Agha and burned Dubcluain on him and no evil has been done to me for it yet by his kindred..." Máel Dúin and his crew cannot venture to the island due to wind. He suggests that God will bring the boat where it needs to go. However, the boats sails into the limitless ocean. The presence of the foster brothers are blamed for the unfavorable winds. Islands encountered The island of ants, from which the men flee because the ants' intention is to eat their boat The island of tame birds The island of the horse-like beast who pelts the crew with the beach The island of horses and demons The island of salmon, where they find an empty house filled with a feast and they all eat, drink, and give thanks to Almighty God. The island with the branch of an apple tree, where they are fed with apples for 40 nights The island of the "Revolving Beast", a creature that would shift its form by manipulating its bones, muscles, and loose skin; it casts stones at the escaping crew and one pierces the keel of the boat The island where animals bite each other and blood is everywhere The island