Audio problem: After the mermaids splash Wendy, she raises a seashell threateningly above her head and says "If you dare come near me again.". Her mouth doesn't move at all.
Audio problem: When the mermaids are nagging Wendy they cry "Oh please!" "I insist!" but their mouths aren't moving.
Answer: They never officially confirmed; but it was likely castor oil or morphine. Both were used around this time period as a common "medicine" for children.
Cocaine, heroin, and alcohol-based elixirs were also commonplace at that time and considered "safe and effective" for children.
raywest ★