Let's Get Invisible! - The Goosebumps Monthly
Added 2017-10-23 08:07:12 +0000 UTCMax and his friends discover a mysterious mirror and lamp in the attic. When you turn on the lamp, you turn invisible! When you turn off the lamp, you become visible again! So, really, it's a magic light bulb story, but I suppose "magic mirror" is a more traditional hook.
