As you are thinking about what to do Dave interupts your thoughts.
"How about we look for a light switch first"
You agree with Dave and the two of you begin to look for a switch.
After a few minutes, you both decide that you probably will not find
one. Dave suggests going back to the main level of the castle and
looking for some kind of light," and who knows maybe we'll run
into Barbara" he says.
You and Dave decide that the chances of finding Barbara in the dark is
pretty slim. You already know that she will not answer you if you
call her.