The ancient Musgrave sword is stolen from the heavily-guarded museum even though the inscription on it is readily available on the replicas in the souvenir stand. The trail leads to the Musgrave graveyard and on into ""the Abyss"".
Un voleur pénètre au British Museum et dérobe l'épée de Musgrave en laissant derrière lui un morceau de sa combinaison qui le protégeait des rayons infra-rouges...