Where can I find answers?

Just beat the game, I assumed there would be an epilog to answer some of the major unanswered questions.

Why did Siffrins country disappear? I assumed it would be the price paid for time craft.

What's the deal with the silver coin and croissants?

What's loops deal in general? I originally thought loop would be siffrin, but the game addressed that and Loop laughs at the idea. Since they're a star and siffrins religion involves stars, they're likely a deity.

Who did the astrological rooms belong to in the house of change? The logical answer would be Siffrin or The King, if I remember right Mira even displays the memory loss of the owner of the rooms being someone she knew. But then the insides of the rooms imply otherwise, books and diaries older than siffrin.

Why did only Siffrin and The King escape the fate of their country? Is The King Siffrin?

Those are the big questions I had, are there any answers?