I'm reading Cardcaptor Sakura (Clear Card edition), and there is this sentence
at the beginning (to explain to the reader who Eriol is), but I can't figure
out the second part at all, please help!

「クロウカード」がすべて「さくらカード」に変わり、ふたたびイギリスに帰っていったが…？

My translation is: The Clow Cards were all changed into Sakura Cards, he had
returned again to England but...?

I think I might be mistranslating ふたたび. The reason I think it doesn't make
sense as "again" is that Eriol was a transfer student from England, and he
returned to England after the cards were changed, but there is no "again" or
"second time", he came to Japan, then returned home (plus, "or did he?" with
"が" :-) )
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2023-06-14T14:40:28.233
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2023-06-14T15:15:34.467
2023-06-14T15:15:34.467
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question
meaning translation manga
Other meaning of ふたたび?