or Esik is a secret society of Calabar, close to the Niger delta. The society consists of 7 grades and the name translates to 'tiger'. The first 3 of the society's grades are closed to slaves and members tend to buy their way to the higher grades. The money raised is distributed between the members of the inner circle, or 'Nyampa'. With the title 'Cyamba', the king is the society's president and each grade has a special day on which their spirit master exercises complete power.
At the announcement of an Egbo day, slaves, women and children run in all directions and the Idem takes to the streets with a whip, lashing those he meets. Most Idems are hermits from nearby bush land, and he travels in disguise as a bush - covered from head to toe in leaves and branches.