E-128 F-256 - C-32 D-64

The next logical term would be:

And deep in the bones of the Aegis , a tiny switch flipped from one to zero. The war ended not with a bang, nor with a whisper, but with a binary choice that had finally, after four centuries, chosen differently. c-32 d-64 e-128 f-256

🔹 C (3rd letter) x $2^5$ = 32 🔹 D (4th letter) x $2^4$ = 64... wait no. 🔹 It's actually just straight doubling! The next logical term would be: And deep