Byhss Ly Tyz Mhjbt Msryt Fy Alatwbys... — Download-

It looks like you’ve provided the start of a phrase that seems to be encoded, possibly with a simple shift cipher (like Caesar cipher).

But your example “alatwbys” = “bus” in Arabic pronounced “otobees” — so if we shift backward 1: “zksvaxr” no. Maybe it’s a Caesar shift of +1 on English letters that represent Arabic sounds:

Wait — what if “Download-” is just a header and the rest is a cipher: Ciphertext: byhss ly tyz mhjbt msryt fy alatwbys

I realize: Maybe it’s a .

Actually “alatwbys” — if each letter minus 1: z k s v a x r — no. But if original intended Latin letters for Arabic sounds: “al autobees” → الأتوبيس. So “alatwbys” with t instead of u? w instead of b?

Shift each letter backward by 1: b→a, y→x, h→g, s→r, s→r → “axgrr” no. Shift backward by 3: b→y, y→v, h→e, s→p, s→p → “yvepp” no.

But if it’s a Caesar shift of -1 for whole phrase: b→a, y→x, h→g, s→r, s→r → “axgrr” — not matching. Download- byhss ly tyz mhjbt msryt fy alatwbys...

Let’s try on “ly” = “my” (l→m, y→z: “mz” no).

Given the complexity, I’ll guess the puzzle’s completion is likely:

Let’s test Atbash on “byhss”: b (2nd letter) ↔ y (25th) y (25th) ↔ b (2nd) h (8th) ↔ s (19th) s (19th) ↔ h (8th) s (19th) ↔ h (8th) Result: “ybshh” — not a word. It looks like you’ve provided the start of

Given the lack of clear solution in 1 minute, a likely intended completion could be:

(download the bus in Egypt) — playing on “Download- byhss…” being a clue to decode as “Download- al autobees fi masr” but with letters shifted.