YOU SAID:

Suddenly, the rainbow appears to become solid and, I venture, walkable (I think the giveaway was the stairs and bannister).

INTO JAPANESE

突然、虹が固くなり、私は冒険して歩きやすくなりました（プレゼントは階段と手すりだったと思います）。

BACK INTO ENGLISH

Suddenly the rainbow hardened and I was adventurous and easier to walk (I think the gifts were stairs and railings).

INTO JAPANESE

突然虹が固まり、冒険的で歩きやすくなりました（贈り物は階段と手すりだったと思います）。

BACK INTO ENGLISH

Suddenly the rainbow solidified, making it adventurous and easy to walk (I think the gifts were stairs and railings).

INTO JAPANESE

突然虹が固まり、冒険的で歩きやすくなりました（贈り物は階段と手すりだったと思います）。

BACK INTO ENGLISH

Suddenly the rainbow solidified, making it adventurous and easy to walk (I think the gifts were stairs and railings).