'And none of these have been traced?'
'No, not one. My father thinks they have probably been sold in some foreign country—America, perhaps, or England. But see, he left this money for you, so that you can let me know what you are doing. Then you can send me a long cypher telegram every day from the station on the Observatory, and it will give me something to do to translate it,' and he handed Franz some silver.
During his illness, Hugo had occupied himself in inventing a most elaborate cypher, which was the envy of the whole school. Not even the masters could read it, and it was an endless source of amusement to himself and Franz, who alone was in the secret.
'All right!' answered Franz; 'I will send you three telegrams, and catch you three swallow-tails too if I can manage it.'
As he went out of the room, his school-fellow looked wistfully at the pair of crutches that stood beside his invalid's chair. He was the only son of a very rich German nobleman, and six months before he had been nearly killed in a railway accident. When he began to recover, the Baron had promised to give a special treat to his son's class in honour of the event, and now that the time for the annual excursion had arrived, he was paying all expenses for the boys to remain three days in the forest instead of, as was usual, only one. It is the custom in German schools for each master to take his class for a long day's expedition into the country during the summer, in which he is supposed to open their eyes to the beauties of nature and the wonders of the botanical world; and the Baron, who was a very wealthy man, had caused this privilege to be extended that year. But now his son was unable to enjoy it, and this use of telegrams was a suggestion of his father's to prevent his being too depressed by the thought of his disappointment.
"He looked wistfully at the pair of crutches."
At five o'clock on the following morning there was a very cheerful party of boys waiting at the station for the little hill-climbing train that was to take them into the heart of the Black Forest. The master, Herr Groos, was also in the best of spirits, in spite of his failure to make any of the boys listen while he explained to them how the train was enabled to climb a hill. The boys, with their yellow caps, which was the distinctive colour of their class, and their butterfly-nets, botanical presses, and green specimen-cases, were much too excited to listen to him.
At last the train arrived, and they all filed into an open third-class carriage, whose only other occupants were two strangers, a tall and a short one, also armed with butterfly-nets and enormous green cases.