Mentally Exhausted

That night, Ivy and Kate were both lying on the mattress on the floor, staring at the ceiling. While Esmeralda was already resting in her room.

Kate looked at her sister and asked, "What are you thinking, sis?" She noticed that her elder sister has been silent ever since they returned from witnessing the deadly invisible barrier in action.

Ivy released a deep sigh of frustration. "After seeing the invisible barrier in action I kind of losing hope that we can get out of this castle alive..."

"Yeah...that's more like it. This castle is a dead-end, period!" Kate agreed.

Ivy retreated into silent mode. She was thinking ahead. How to solve her dilemma? After ten days and she still can't convince her sister to come with her then she will die of the poison she already ingested in her body.