Found lost Bitcoin and other wallets information, not sure what to do now

I'm not 100% sure if this is the place to ask but I don't know what else to do

I recently bought a book online from Goldstones, and found 2 piece of paper inside. For obvious reasons I wont add pictures, but I will list what I found on them

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• An email under hushmail that no longer works - tried to email but got error response
• Username and Password for multiple websites
  • One unknown, maybe the email?
  • Slushpool
  • Worker
  • Dogepool
  • Darkcoin
  • Orridge

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• Bitcoin Wallet ID, name and Root key

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Although I'm fairly ignorant of bitcoin I know how important alot of this information is for someone and their security

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I've tried to email the hushmail account, as well as find the owner of the wallets via the multiple usernames on the papers but to no avail

What should I do with this data? Thank you for any help

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EDIT 1: Against my initial judgement I tried to log into the armory account and the log in failed. Whether this was due to my own mistakes or the information being outdated I don't know

Since the email doesnt work, the root code doesnt work and the usernames aren't taking me anywhere I'm going to assume all information has been changed after the owner lost the paperwork

Just in case I will keep them until I can contact goldstones support tomorrow morning

I want to thank everyone for their help in the comments again, especially the warnings against potential scams

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EDIT 2: I tried to get into contact with the previous owner of the book but that fell flat. Instead, as some people recommended, I installed the bitcoin wallet and tried to access the wallet, but it seems the root key given for armory no longer works, unsure if that's from my ignorance of how to do it properly or from the key changing or wallet being deleted, if that's even possible

As well as this I looked into the other accounts listed and had similar issues with all of them, leading me to believe that the owner realised their mistake and changed all the details, or it was all fake to begin with

I'm going to keep them for another day or two but overall I think its a dead-end. Thanks again for all the help with this, it's been very interesting as an outsider to cryptocurrencies