“Studies in Moro History, Law, and Religion” by Najeeb M. Saleeby is a book about the history, law, and religion of Mindanao prior to the advent of Islam. Excerpt: “When the news reached Raja Indarapatra, the King of Mantapuli, it grieved him very much and filled his heart with sympathy. Raja Indarapatra called his brother, Raja Sulayman (Solomon) and asked him to come to Mindanao to save the land from those destructive animals. Raja Sulayman was moved with sorrow, mingled with enthusiasm and zeal, and consented to come. Raja Indarapatra handed to his brother his ring and his kris, Juru Pakal, and wished him safety and success. "
