Ages 10-15. Faced with a choice between piano lessons or following in the footsteps of his scientist father, Grin cannot resist the lure of mystery he feels when he visits his father's labs. But he could never have imagined what doors his own attempts at scientific research would open up for him. Or where these doors would lead. When he finds himself caught in dimensions of unimagined weirdness, where towns don't have streets, where trees talk, where even the grass cannot be trusted, it is already too late. The insects are waiting and there is no going back.