Summers for me were spent grabbing armfuls of these books from the public library. I remember the Cave of Time, where if you went up a tunnel you went into the future and if you went down a tunnel you went into the past. My favorite was being stuck eight seconds in the future. I always died trying to cross the street, being hit by a car that didn’t exist yet. I’m sure Stephen Hawking must flip out at the pop science, but whatever.
Also of note was this space adventure. I remember always unleashing some horrible intergalactic plague.
Well, it’s good to see that the official brand is back.