Which linking word or phrase could be added to this sentence from the passage to improve its flow?

The British government pays for ten ravens to be kept there at all times.
In contrast,
Just in case,
First of all,
Chiefly,

Question

Which linking word or phrase could be added to this sentence from the passage to improve its flow?

The British government pays for ten ravens to be kept there at all times.
In contrast,
Just in case,
First of all,
Chiefly,

brucebaner · Answer

Its official name is "Her Majesty's Royal Palace and Fortress," but the castle has historically been called "The Tower" or "London Tower." In the past, it served as a royal palace, a place of execution and torture, and a zoo. However, it is most famous for being a prison.
     Many well-known figures spent time behind bars at London Tower. Queen of England Anne Boleyn, Lady Jane Grey, Queen Elizabeth I, and Sir Walter Raleigh are just a few. In fact, The Tower is said to be the most haunted building in England. _______ Anne Boleyn's ghost has been seen by those guarding it.
     There is a superstition that if there are less than six ravens kept at The Tower, the kingdom will fall. The British government pays for ten ravens to be kept there at all times. Although no royalty currently resides there, The Tower is guarded.

anonymous · Answer

I think it is In contrast,

anonymous · Answer

can you help me with my question?

anonymous · Answer

@brucebaner

brucebaner · Answer

yes

anonymous · Answer

my question is right under yours