Bit of a Faustian deal, bit Lord of the Rings (my precious), the idea of gaining power/rewards but at a cost, the idea of an item prized but also a burden that could cause evil. And a handy stand in for concerns about weapons of mass destruction/powerful nations' decision to war. I appreciate the novella treatment, it didn't feel too repetitive in teaching the protagonist and the reader what the box could offer, versus the threat it represents.1/