Mother please, I'm scared

Mother, please, I'm scared
What a dream, an awful dream
Someone strange and mad
Seizing me and drowning me

Shh, Gustav, it's alright
Come and meet a friend of mine
Welcome to my world, my friend
Gustav, this is Mr. Y

This place is yours?
Every inch of it
Tell me where you'd like to go
Tell me what you want to see
I can grant any wish

Could you show me, if you please
All the island's mysteries
All that's strange and wild and dark
In the shadows of the park