This was #5 in the Mystery Adventure Series. We are back in the house of Brian Howarth, whose Mysterious Adventures series started with Golden Baton, followed by The Time Machine, Arrow of Death Part I, and Arrow of Death Part II. This game had an annoying "puzzle" where you would randomly be killed by dust when entering the vent. Some versions had a higher chance of dying, which makes it a real drag. The color drawing in some versions is also interesting, on any given 8 by 8 tile on the ZX Spectrum, only two colors are allowed. So you could have white on black or yellow on black but not white, black, and yellow all the in the same area. This led to lots of clever and not-so-clever tricks of mitigation, and on some games it is clear the authors just gave up and let the colors go wild.

Part of the Beating My BBC series - Game #005

Start (Enter Pressed) - 07:33

End (Last Command Entered) - 24:14

Total - 16:41