The lighthouse keeper was dead. His body lay sprawled below. Blood pooled on cold stone. Detective Sarah Chen arrived early. Rain hammered the coastal cliff. She climbed the winding stairs. Wind howled through broken windows. The victim's eyes stared upward. His right hand clutched something. Sarah knelt beside the corpse. A brass key glinted there. Strange symbols marked the metal. Three suspects waited down below. Each one had a motive. Each one told different stories. Sarah pocketed the mysterious key. This case would be difficult.