Hetty plans to rescue a kidnapped girl, leading to a final confrontation with her old enemy.

Hetty starts her new life in a grand country house but is immediately drawn into a world of mystery. And a London gang are searching for her, too.

Hetty is shocked when she discovers that Matron has sinister plans for her future. But how can Hetty stop Matron when she's locked in a cellar?

Special visitors to the hospital are caught up in a fight among the boys, while Hetty tries to discover what Matron has planned for her.

Hetty's secret plan to help Nurse Winterson backfires when she causes an innocent man to be accused of theft.

Hetty discovers that others are planning a daring visit. Meanwhile, Vince blackmails Nurse Winterson to get special treatment.

Will Hetty find the secret book that could bring Matron's downfall? And why are so many of the foundlings falling ill?

A street girl breaks into the hospital looking for safety and Hetty must help by disguising her as a foundling. However, they are unaware that Matron has her own reasons to find the young girl before anyone else.

Hetty searches London's streets for Ida, not realising Matron has her own plans to find her. Will the police reach Hetty first, before Matron's friend gets rid of Ida forever?

Hetty receives exciting news and makes a daring escape. She soon learns the streets of London are a dangerous place - how will she survive?