In the middle of last summer a small Norwegian coastal town was the scene of some highly unusual events. A stranger appeared in town, a certain Nagel, a remarkable, eccentric charlatan who did a lot of curious things and then disappeared as suddenly as he had come. What's more, the man was visited by a mysterious young lady, who came on heaven knows what business and left after only a few hours, afraid to stay any longer. But this is not the beginning....

The beginning is as follows: When the steamer docked around six o'clock in the evening, there appeared on deck two or three passengers, including a man wearing a loud yellow suit and a wide velvet cap.

. . . . . . . . . . . . . . . .

This man was Johan Nilsen Nagel.
The porter took his luggage away on a cart. It consisted of only two small bags and a fur coat—yes, a fur coat, though it was the middle of summer—except for a valise and a violin case.
None of it was tagged.

if you want to know what happens next, get the book. it's called Mysteries by Knut Hamsun, a Norwegian author.