Visita-jogo noturna para celebrar o Halloween
A Noite das Comunicações Perdidas is a nighttime game-visit at Museu Quinta de Santiago, created to celebrate Halloween. Families and friends are invited to solve riddles, decode hidden messages and gather clues to stop a strange ghostly broadcast.

Image: from the event entry at Agenda Matosinhos.
Source: Agenda Matosinhos (Câmara Municipal de Matosinhos). Details can change; the original entry is the reference.