Upstairs, Emily sat on the floor, with a pile of tools at hand. Her face was wearing a goggle, looking focused and serious with the dropper dripping the last drop of liquid into a test tube. When she saw the liquid in the test tube turn into light blue, she breathed a long exhale.
It's finally done!
She put the concoction into a clear bottle and was about to clean up the tools on the floor when the door to the room suddenly opened.
Emily jerked back and saw Charles standing in the doorway.
Her little face sank and she stood up and gestured at him, [Why didn't you knock?]
Charles saw this and his face sank, "Type!"
Emily then remembered that Charles couldn't read sign language, and with her cold, delicate little face, she pulled out her phone, typing, [Why didn't you knock?]
Charles
