I was 17 when I started reading them. >.< Always been embarrassed of that. Lol. IDK, I thought the Helmacrons were a good filler, in theory, I've always thought it'd be cool if there were a planet, life supporting, out there that was TINY, and had TINY little people on it, so that was cool enough, but... Ugh. The books they were in! Honestly, those are my two least favourite of the entire series!