The girl wakes up to a mysterious noise and sees an invisible man with floating glasses. She says magic words to reveal the invisible man, who turns out to be shadows from coats and a hat. The girl looks for a lantern to see better but it gets light outside. At night, the girl's tooth falls out under the sofa where the invisible man is hiding. They become friends, though the man cannot speak and communicates through gestures. The girl's name is Lucia and the man's name is Txac. They make jewelry to give to children whose teeth the invisible man collects. Txac gives Lucia magic glasses to make her invisible too so they can deliver the gifts together, but then Lucia wakes up realizing