Sorry to revisit a long dead thread but I noticed a few things while looking over Servants of the Lake. They aren't all necessarily clear errors, but I've noted them below for your reference.
Dialogue is italicized throughout the scenario, with the single exception of the Brophys' responses to potential questions on page 61, which are written in the form of dialogue but not italicized. Perhaps for consistency this should be altered?
As the text on page 61 refers to the Brophy 'brothers' having been concerned and burying James due to that, I wonder if it would make more sense to use "the Brophys were concerned someone might come..." rather than "the Brophys are concerned someone may come...".
Again on page 61, it should read "(STR roll required to break down)" in brackets, not "(STR roll breakdown)".
There's a significant error on the guest sign in handout (page 65). Jacob signs in right under Abe. However in the scenario Jacob is not 100% sure Abe was at the motel. Surely if he signed in right under his lover he would have noticed this? I think the error could be rectified by just removing Abe from the top of the handout and noting the 'brothers' remove pages whenever they disappear a guest, which would explain why Jacob didn't see Abe's name.
The scenario is ostensibly set in the 1920s as written. However Bill's car is listed as a 1930 yellow Buick Marquette (page 64). He should not have this car given the decade the scenario is set in.
Sarah and Bill have cars listed on page 64. Jacob, despite having also driven there, has no car listed. Listing a car for him as well would be helpful for a keeper describing the parking lot on the fly.
Our group had an excellent time with this scenario. In my opinion, any minor alterations made in relation to the above comments would only further improve a strong product.