Imaris
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Yeah, it's easier to just find the answer to this riddle online.
If you decide to do it, at least don't spoil it, okay?)
Added 1 minute ago
Was he a widower?
No, and that's very important!
And another guess. Could it be that this seagull did him a favor, for example, by carrying a note when he was stranded on a deserted island as a result of a shipwreck?
No.