This intense storyline culminated in her departure from Summer Bay, confirming the long-held suspicions about her erratic and manipulative behavior.

Here’s how her secrets were exposed and led to her exit:

• Growing Suspicions: Roo Stewart (Georgie Parker), Eliza’s foster mother, grew increasingly uneasy with Eliza’s behavior, especially after Eliza’s failure to help Alf Stewart (Ray Meagher) when he was suffering from chest pains, and even contemplating letting him die.
• The Music Box Revelation: Roo eventually takes a closer look at Eliza’s prized music box – the only possession Eliza saved from her previous foster home, which was destroyed in a fire (a fire Eliza was suspected of starting). Inside, Roo discovers shocking “souvenirs” including:
  • A photo of Harper Matheson (Jessica Redmayne) in labour.
  • Alf’s missing heart medication.
  • Other disturbing items like a lighter and a stolen fishing knife, which hinted at her dark fascination.
• The Harper Labour Truth: The most chilling revelation came when Harper’s ex-fiancé, Tane Parata (Ethan Browne), pointed out that Eliza had secretly recorded a video of Harper when she was in labour. This was news to Harper, and it quickly became clear that Eliza was up to no good that day. Further investigation of Eliza’s phone logs revealed she lied about calling emergency services for Harper, putting both Harper and her baby at serious risk.
• Eliza’s Confession: Confronted with the evidence, Eliza finally started to admit to her twisted motives and disturbing actions, even implying she wanted Alf to die. She confessed to previously lying about the strange items in her music box.
• Realizing Her Danger: As Roo realized the full extent of Eliza’s manipulative and dangerous behavior, she made a formal report against the teenager.
• The Exit: It was ultimately agreed that Eliza could not continue living with the Stewarts, as she clearly needed professional psychiatric help. She was sent away to receive the treatment she desperately needs.

Eliza’s Last Word: Before her exit, Eliza had one last cruel moment, telling Roo that she was the worst foster carer she’d ever had. While hurtful, Roo understood that Eliza was lashing out.

So, yes, Eliza’s exit was indeed triggered by the exposure of her deeply unsettling secrets, revealing her to be a highly disturbed and potentially dangerous individual who required specialized care.