Liam could hear the sound of joy from Madam Helena all the way down to the basement where the primary formation was built.
The formation relied on a living being to control it, but when Liam studied the formation, he discovered that if he could release Madam Helena, he had to replace it with something else.
At that time, for some reason, his thought turned toward home when he had time to watch TV, and with that, he remembered the thing he held to change the channels.
A remote.
What if he made something that could be used as a remote? It would eliminate the need to keep a person inside the formation and give Madam Helena the freedom she wanted.