The Silo Seventeen File records an apparently unwarned collapse and a young caller's question about level forty.
Donald requested the available information on the neighboring silo while pretending to refresh his memory. Eren delivered the resulting folder.
The file records no advance warning or increase in violence before the collapse. It also records a young-sounding male caller asking what was happening on level forty.
The file preserves reports used to investigate the silo's sudden collapse.