The Current Prototype requires meetup organizers gather a number of objects from Sherlock Holmes' short stories. Please select the object and also give some context by taking a section from the story too.
Griffins' tower (Russian: Башня грифонов) is a red-brick tower situated in one of the yards on Vasilyevsky Island in Saint Petersburg. It used to be a part of a 19th-century pharmacy factory run by famous pharmacist and alchemist Wilhelm Poehl (sometimes written William Pell). The tower is around 11 m high and 2 m wide and has no windows or doors. Almost every brick of the tower is numbered. The mysterious code and unusual location at the pharmacy yard caused numerous legends about the tower.
The most common legend about the tower is connected with its original owner Wilhelm Poehl, who was believed as not only a royal pharmacist but also an alchemist. In his free time he used the tower to incubate magic griffins. According to the legend the griffins were invisible and could be only seen reflected in windows at midnight. The numbers on bricks constitute a magic code and those who could decrypt the code could solve the Universal mysteries
It is absolutely Sherlock's object! I am live not far from there and can write new code.