Eponine's mouth actually dropped open, and for a minute, all she could do was stare at Mr. Gold. Six THOUSAND? SIX THOUSAND?
She had never even heard of so much, let alone thought she'd possess it. Finally, she managed to whisper,

"Really? Really and truly? For me? I - I - wow..."

And then she began to smile. "I can buy a house and food and clothes and still have enough left... I'm rich again!"