In the world of the engineer Zeno, there is no place for magic. Besides the reality distortion fields. However, they are so real that there even is a Wikipedia page dedicated to them.
But one thing makes Zeno wonder: very few people can find their way to his apartment at Rentzelstrasse No. 4 without his help. The postman apparently has not found his mailbox yet. Even Zeno’s modern digital camera seems to consistently overlook Rentzelstrasse No. 4.