With him was a girl of perhaps two-and-twenty, in a slate-coloured dress with very little ornament, and a yellow straw hat of the shape originally appropriated to males; her dark hair was cut short, and lay in innumerable crisp curls.
Father and daughter, obviously.

The girl, to a casual eye, was neither pretty nor beautiful, but she had a grave and impressive face, with a complexion of ivory tone; her walk was gracefully modest, and she seemed to be enjoying the country air.
Jasper mused concerning them.

When he had walked a few yards, he looked back; at the same moment the unknown man also turned his head.
'Where the deuce have I seen them--him and the girl too ?' Milvain asked himself.
And before he reached home the recollection he sought flashed upon his mind.
'The Museum Reading-room, of course!'.