There are a lot of connections between the ancient Celtic artifacts and the Negative Stone, which is why "The Boneman" Ellis decided to checkout Ireland
Ireland
Ireland. Ireland is the third largest island in Europe and the twentieth largest island in the world. Ireland has some 6 million inhabitants and its ancient history involves Celtic 
Celtic Womantribes that inhabited the area from sometime after the Ice Age.
When the Roman Empire expanded into the area, they refered to it as Hibernia or Scotia. Ireland today is a beautiful country steeped in modern living as wel as ancient history. If the Boneman wanted to find the Negative Stone, then he would probably find it n n area that has an unusual artifact, "The Rose of Tralee" seemed like an artifact or clue that he could trace.
Little did the Boneman know that the Rose of Tralee 
The Rose of Tralee was one of the world's most famous beauty pagents. When Ellis arrived upon these emerald shores, he could hardly believe the incredible beauty that he would find at the little town in the southern part of Ireland. The Rose of Tralee Festival is a week long event and Ellis found the Irish ladies so beautful there in 1976 that he just had to go back again in 1977.