He wished to show Albert the Colosseum by moonlight, as he had shown him Saint Peter's by daylight.
When we show a friend a city one has already visited, we feel the same pride as when we point out a woman whose lover we have been.

He was to leave the city by the Porta del Popolo, skirt the outer wall, and re-enter by the Porta San Giovanni; thus they would behold the Colosseum without finding their impressions dulled by first looking on the Capitol, the Forum, the Arch of Septimus Severus, the Temple of Antoninus and Faustina, and the Via Sacra.

They sat down to dinner.
Signor Pastrini had promised them a banquet; he gave them a tolerable repast.

At the end of the dinner he entered in person.

Franz thought that he came to hear his dinner praised, and began accordingly, but at the first words he was interrupted.