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Trail of Cthulhu: Castle Bravo

Castle Bravo

This adventure is set in 1954, rather more modern than most of Trail of Cthulhu, and it sets the Investigators as sailors and scientists off on a cruise to watch an atomic bomb test at Bikini Atoll. Needless to say, after the first test shot in the series, strange things begin to happen and it's up to the party to save themselves and their ship... if they can! As this is likely to be a one-off adventure, pre-generated characters are provided.

There's no real need for a hook, the Investigators are aboard the ship whether they like it or not. There's a backstory that explains just what is going on, and then the pre-generated characters are presented. There are six (a naval helicopter pilot, a meteorologist, a naval chaplain, a medically-qualified research scientist, the ship's master-at-arms, and a corpsman) although it's recommended that the adventure works best with four players. They are presented in narrative format, so it's probably worth transferring them to character sheets before the game. Then it's on to the adventure...

This begins very early in the morning (it's still dark) with the ship on station 38 miles from the test site, about five minutes before the test shot is scheduled to take place. The Investigators can get to know one another and key NPCs at this time. Neatly, each character has a personal chunk of 'background knowledge' which it is suggested that you hand out at this time. A map of the area and a basic blocky plan of the ship are provided to help everyone get orientated. There's also quite a lot of scene-setting detail so those unused to naval operations can get the feel of it, and know where and who the important individuals (like senior officers) are. Then the bomb goes off...

There are real-world issues to deal with as a matter of urgency, but that's not all what with spooky visions and several crew members behaving oddly. There's lots going on and as time progresses it gets weirder and weirder. Investigators who retain their health and their marbles will be kept busy. Saving the day - at least as far as the world in general is concerned - may require drastic measures... and there is a remarkabky eerie ending if they fail!

This adventure has atmosphere and mounting horror in spades and could make an excellent movie, it's pretty cinematic. In style, it's mostly 'purist' but with a bunch of military around might trend towards 'pulp' depending on character actions. It's definitely a stand-alone adventure, but one to be relished to the full.

Return to Castle Bravo page.

Reviewed: 27 January 2017