It's Bill that's spent the money on his cussed booze and gambling. Way of the Lawless Max Brand The gambling houses can do it, and so keep on breaking the law.
When Winnie tries to drink, Jesse stops her. Then Mae and Miles appear. Alarmed at Winnie's discovery of the spring, they kidnap her. Winnie learns that the music she heard comes from Mae's music box. She also learns the Tucks' secret: the water in the spring is magic and has made them ageless.
Waxing Cresent Moon Magic. When the moon is waxing it appears to be growing, the period from the dark to full moon phases. It's magnetic energy assists with bringing things to out. This entire waxing period is the best time to work with constructive magic, or magic that builds things/brings things to us.