Here’s a short fictional story based on that prompt: The Last Packet

"Impossible," she whispered.

She typed: SEND ACK.

UPD retry 4,347 — ACK pending.

Someone — or something — was listening on the other side.

Maya's hands hovered over the keyboard. The log updated again.

Welcome home, Maya. Update complete. Want me to turn this into a longer short story or adapt it into a different genre (horror, sci-fi, noir)?