However; that was simply not true. Even when magic was not actively in use, there was always still a magic signature. Even the Aralangs, with no magic naturally in their bodies, had magic signatures, although tracking an Aralang using a magic signature was not a fun idea. Silen was being tracked. He was being watched by all active military, because right now, he was the biggest threat.
The pilots kept drilling. They were not going to simply back off for an enemy hostile. They drilled right through Silen's barrier and started drilling into his flesh, ripping through his skin and bones. Ensuring that the threat could not escape, right before the drills closed down, localized anti-teleportation, anti-magic, and anti-portal barriers were raised. As this was all going on, the rain, ice, etc in the sky was dematerialized by Sky B onto a Sky C layer.