Eliza came to Roo as an emergency placement last month, after her last foster home was destroyed in a fire.

Her fellow foster-siblings were still inside as the fire took hold, and all Eliza was able to save was her music box, in which she kept her most precious possessions.

But as Eliza settled in that evening, we saw that she was keeping some disturbing items hidden away in the box, including a lock of blonde hair, a photo with two faces scratched out, and more significantly, a lighter…

As Roo began home-schooling Eliza, she began to exhibit a strange fascination with medical science, or more specifically the process of surgery.

Eliza began looking up the techniques for major operations, as well as the implements required, and started watching videos, which Roo found a little disconcerting.

Both Alf (Ray Meagher) and Marilyn (Emily Symons) have already voiced their concerns about Eliza’s odd demeanour, but Roo pointed out that they had promised to support her in bringing a foster child to Summer Bay House, and reminded them of what Eliza had been through.

Unbeknownst to them all however, Eliza had already swiped a fishing knife from Alf after spotting it in his bait shop, and had added it to the collection in her music box.

Eliza also expressed an interest in babies, demonstrated when she walked up to stranger Harper (Jessica Redmayne) in the surf club and placed her hand on her belly, hoping to feel the baby.