It comes at the end of a series of strange adventures and mishaps that befall one of the protagonists, a ne'er-do-well by the name of Jack Shaftoe, and no summary can do them justice: you will have to read the chapter (pp. 450-64) for yourself.
The passage goes:
"We've missed you Jack," [Eliza] said, "where've you been?"
"Running an errand—meeting some locals—partaking of their rich traditions," Jack said. "Can we get out of Germany now, please?"