La Isla de los Muertos (Lake Atitlán) [unverified]

Research supplied for 'La Isla de los Muertos (Island of the Dead), Lake Atitlán' contains no documentation that such an island exists in Lake Atitlán, Guatemala, nor any historical or folkloric material tied to that toponym in the lake region. The provided Source 1 describes Caja de Muertos, an uninhabited protected island off Ponce, Puerto Rico, and is unrelated to Lake Atitlán. Source 2 refers to the artistic motif/painting 'Isle of the Dead' by Arnold Böcklin, not a Guatemalan geographic location. Sources 3–5 are archival news and media items; while one brief index line mentions earthquake fatalities in Guatemala, none provide geographic, historical, or paranormal information about an 'Isla de los Muertos' on Lake Atitlán. Because the supplied materials do not establish the island's existence, history, reported phenomena, associated entities, or status, no factual claims about hauntings or folklore for this named place can be documented from these sources.