The name Borhault is unusual, it isn’t an Irish name, nor a Syrian or Hebrew one. and the fact that he writes in Aramaic is strange as well for someone from 6th century Ireland. The location of St. Brendan’s Tower on the coast should be easy to find given the extensive directions in the notebook.
In the cannibal camp you found a small notebook with a variety of notes written in Aramaic by a certain Borhault, a companion to the Irish St. Brendan.
While most of it is just daily notes of his sins and tribulations on a long sea voyage with the saint, there is mention of Brendan landing in what we would call New Jersey and building a circular stone tower to hold a sacred relic “until the time was right.”