Last Transmission from Isstvan III

This fragmentary transmission was recovered from the ruins of Isstvan III, broadcast by surviving loyalists after the treacherous virus bombing ordered by Horus. The message details the horror of watching brothers turn upon brothers and the desperate last stand of those who refused to bend the knee to the Warmaster.

The transmission was intercepted by astropathic relays and eventually reached Terra, providing crucial early intelligence about the nature of the rebellion.