Although this quest chain began via the Sea Collector, it continues by talking to the Sea Scholar.
When you give the Ancient Treasure Instructions to the Sea Scholar, choosing the dialogue option 'Ask about Ancient Treasure Instructions', he will tell you the following:
Ask about Ancient Treasure Instructions
Yes, can I help you? Ah, you'd like me to decipher some ancient text for you. Well I do pride myself on such abilities. However, as you know services around here aren't free. you'll have to do something for me first.
Recently in my old age I've been having a difficult time seeing. There is a tool called a magnifying glass that should help with my vision. If you bring that to me, I'll finish deciphering the text.
I hear you can find them in some pirate chests. Apparently there are captains who take a fancy to reading. Who would have thought?