There is a tablet here - and a very non-puzzly note addressed to Indy. It reads:

Indiana,

I got hired by some strange bankers to find an ancient tablet, but the way they asked me to do it set off some alarm bells and I'm really not sure if it's for the best. I heard you were also looking, so I haven't given them the tablet yet - I'm glad you got here first.

Daniel Jackson

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After examining the tablet, Indy tells you:

This tablet seems to be some sort of calendar system. It looks like records - or possibly even predictions - of events. Maybe we can decipher it and find some *real* treasure! I think we need more than one tablet, though.

Solved