I have to be truthful, I was really done with this series after the first four Francis movies. I skipped the fifth an sixth to watch this one. I always admired Rooney, but he really wasn't that good or funny in this movie. I really didn't notice that Willis was not the vioice for Francis until I did some reading. The story line, a killing, a castle, a spirt on a horse, and a group of people trying to steel the inherited money from the person who it belonged to. The plot really wasn't interesting, but it keep me laughing througout. The interrrogation scenes were a real boar, lights and all. David Jension was a supporting actor, otherwise there was no other notable actors. And the lamest partt of this show was others learning that Francis talked. For the most part the first four movies kept me interested, but after a while the surprise on the actors' faces when they learned Frances talked got really old. Mind you this is really a series for the younger kids, say up to age 14. It will kep the kids laughing even in 2022. This wasn't as good as the others in the series, but it was still entertaining. Perhaps changing up the main actor O'connor to Mickey Ronney was a mistake. The series should have ented when Chill Whills and Donald O'Connor decided to walk after the sixth film. Its not the worse film I ever watched.

The Francis the talking mule series came to a limp end with both Donald O'Connor and Chill Wills as the voice of the mule no longer in the series. Mickey Rooney somehow got talked into this very silly film and to compensate overacted outrageously as to not have the mule steal any scenes. And stealing scenes from Rooney was not easy.

No longer an army mule Francis is put out to pasture and he meets an old friend in Mickey Rooney. He meets him to tell him a murder has been committed and to leave town yesterday lest he get involved. Of course Rooney the boy scout tells the cops and then spends the rest of the film trying to explain he heard it from a mule. The more he explains the more he's suspected.

In fact several more murders occur and it all centers around a haunted Scottish castle something like the one that Eugene Palette moved to Florida in The Ghost Goes West. All the stuff from Universal's Gothic horror days, sets and props, come into play as Rooney decides to solve the mystery.

It's all real silly, in fact the whole series was kind of silly. Francis In The Haunted House sputters the series to an ignominious conclusion.

This series should've ended after the exits of Donald O'Connor, Arthur Lubin and Chill Wills.

That's not to say that this is any worse than what that trio created together though; I'd say 'Francis in the Haunted House' is better than 'Francis Goes to West Point', in fact.

Mickey Rooney is actually a fairly decent replacement for O'Connor, though it never feels right that the other geezer isn't involved; it's his lead spot, for better or worse. No-one else on the cast sticks out - if I had to pick one: James Flavin.

Finally, six follow-ups later: the end of the 'Francis' series. An interesting (?) time capsule, given the amount of sequels, from the early 1950s, but a series that never quite reaches a positive level in my eyes. 'Francis Goes to the Races' is comfortably the best one (relative, as still not good),the rest will be forgotten.