The Tycoon's Lost Mother

Helena married Gavin for her son, Leo Morgan. She gave birth to Raina. Years later, Leo Morgan seeks his mother. Gavin decides to sell Raina to Johnson's son. Helena helps Raina escape, giving her Leo's drawing to find Leo Morgan. Gavin offers Helena to Johnson, forcing her to marry him. Raina meets Leo Morgan, who learns his mother is in danger. They arrive at Gavin's house, but find no trace of Helena. Where could she have gone?