Originally Posted by
Logic
Please don't take what I am about to say next as a criticism on your part, this is just how I do things, and thought you might like a suggestion for use in the future.
Go ahead and send the documents like you had before, but bold the names of the NPCs as well as a quick description up front (blond elf tall male loud annoying) before their slightly more detailed description.
Do the same bold technique for the secret. It is a little more conspicuous and at that point your players have little leeway in saying "I didn't notice."
"I can't remember" is unfortunately still a valid excuse.