Up-stairs

At sight of him, the animal came forward, rubbed demonstratively against his legs, and with affectionate persistence followed him up-stairs.

Source: tatoeba (11643943)

In another moment the locksmith was standing in the street, whence he could see that the light once more travelled up-stairs, and soon returning to the room below, shone brightly through the chinks in the shutters.

Source: wiktionary

So Mrs. Sturk led the way up-stairs, whispering as she ascended; […]

Source: wiktionary

“Well, we must find out Mr. Frank’s address to-morrow, and you must write and tell him all about it,” said his wife, and taking up the jug of milk she had come to fetch, she went up-stairs. But the next minute she came flying down again. “John, run for the doctor directly,” she said; “that poor thing is dying, I do believe. Go up and call Molly,” she said as she went up-stairs again.

Source: wiktionary