Betsy is my detective. She loves all-things-spy. Today at the library she launched a search for books on the subject, and came up with Sneakier Uses for Everyday Things, by Cy Tymony.
What a fun little book! Shortly after we got home, she had assembled a "metal detector" using a cd case, velcro pads, an am radio and a calculator.
I can't wait to see what she does tomorrow.