Hi cavegirl. This game is FULL of puzzles like that one, so brace yourself for more "annoyances" just like that one as you play through.
You have a couple of options open to you:
>You can click on the "light bulb" in the top right corner to give you a quick hint.
>You can click on the "mini game" book next to the "light bulb" and then play through a short "shoot the spiders" game until you reach a walkthrough...
>Or you can just read through
the Walkthroughs posted here on the forum.
Whichever path you take I hope you have fun!