What were those invisible ink books called?
October 4, 2004 5:06 AM Subscribe
As I was reflecting on the numerous road trips with the family of my youth, one thing keeps resurfacing: those little activity books with the "magic" pen that revealed the answers, games, etc. The pen was white with an orange cap, and I remember the books being about 12 inches tall and 6 inches wide, with some hip 70's-ish font well into the 80's. What were they called, and where can I get them?