IX. Danny and Elsa were married in 2002. In 2012, Elsa left the conjugal home and her two minor children with Danny to live with her paramour. In 2015, Danny sold without Elsa's consent a parcel of land registered in his name that he had purchased prior to the marriage. Danny used the proceeds of the sale to pay for his children's tuition fees. Is the sale valid, void or voidable? Explain your answer. (3%)