Valerie decided to hear Chris out but before that, she wanted to know why Tiana was in her former ward in the first place and even had a drop attached.
She couldn't drop it as common exhaustion, so she asked the doctor who had admitted her.
They found out the cause of Tiana's death was poison. Eliana, going back to bed known as Lucy, had injected poison into her drip.
It was a poison capable of making the victim die peacefully in their sleep but the substance collided with the special compounds of the drip Tiana was taking, thereby causing her to convulse.
What could've been a painless and peaceful death ended up being an excruciating one.
It was tragic that she had to go through that pain in her last moments but there was nothing anyone could do at that point anymore.