The Metalwood Saga / Reference Guide

Full-series spoilers

Gate Test

A gate test is a massive Cothellon operation designed to gauge the planetary-scale gate system of Fennas Elenathon. By drawing immense power from the Earth's core, the test creates a highly visible, destructive beam of light that causes severe ground tremors and localized storms across the planet's surface. Lorelei unexpectedly accelerated the timetable for the first City Three gate test, an act that terrified Orym.