'The racist
Sweats to build a cage
For the black
Eagerly and urgently hammering in
Every bolt for every bar
While the cancer of fear and hate
Eats away at his heart
At last he looks round at his work
And gives a start
For the mighty cage is complete
And he, too, is inside.'

by Savitri Hensman

When Centerprise published Savitri's poetry collection Flood at the Door (1979), the National Front were terrorising Asian and African-Caribbean people. The National Front's HQ was at Excalibur House, 73 Great Eastern Street.