Three Faces of Helena

In 276BC, a slave is beaten half to death by a demented princess...

In 1884, a woman calls upon the legendary explorer Allan Quatermain seeking passage to a lost city...

In 2419, the Inquisition exacts Holy Retribution upon a woman called The Abomination...

The link between all three is Helena, the woman just days from marrying into Erimem's family in 2017. What is the link and how can Erimem save her family?