This one gets a high rating. I remember now why I’d been so enthralled with this particular part of the series. All the space-time continuum and time matrix stuff was so cool and absolutely chilling— being sort of mesmerized and obsessed with outer space, it’s just so wild and wonder-inducing to read this concept of aliens and mighty creatures that are capable of safely meddling with the timelines of the universe. It may be a short book, like the others, but it is so imaginative and out-of-this-world (literally and figuratively) that, despite its target audience of young adolescents, someone of any age would be entertained by it. Still as impressed as I was (or, as an adult could be) when I was young- excellent way to end the short trilogy and really did leave me wanting to know more about both the Ellimists AND the Visser. It sets the stage beautifully for the main series, Animorphs, to open up- a good place to begin those ones... and I might just do a reread!