[Storybook] Unknown Letter

Etc item · ID 4001110

It's an anonymous letter. It just said #c 'I have what you want. Meet me at the Cloud Balcony'#.
Only for : #cNight Lord#

How to get it

Dropped by

Monster	Lv	Chance	Where
Dual Ghost Pirate	?	0.70%
Maverick Type A	86	0.70%	<Year 2230> Dangerous Tower Ventilator, <Year 2230> Dangerous Tower Lobby
Dual Ghost Pirate	87	0.70%	Unbalanced Time