I recently finished a point and click adventure game inspired by one of the Sherlock Holmes books, the box didn't mention which one. In any case, during The Mystery of the Mummy we learn that Holmes can see much better than we can in the dark, he,shackled by the constraints of "one item, few uses", can't seem to light a wick on the pipe that he is always smoking, nor the various identical lamps in the two rooms before the one with another identical lamp that happens to have slightly less stuff near it, and that paranoid professors have a lot of time on their hands. Oh yes, and Mr. Holmes is probably psychic, or at least knows far more than the game allows me to know.
As with most point and click games, there are a lot of items to collect and use. A good game will let you know somehow which objects are important enough to use the items on to get what you need, this one, however, sometimes just lets you strain your eyes, and you will strain them, as you wave items up against every surface you can find in hopes of finding a use for what you find.
On the whole, I think I was just supposed to find stuff for Holmes, not figure things out myself, because his big reveal at the end, while telling me some of the stuff I knew from the clues, also gave away some stuff that I certainly wasn't led to link up.
Also, scorpions require specific buckets to be trapped under, not the first one you pick up, and they will hunt you down like the deadliest ninja when they decide its time to kill you.