Remember, if you haven't used our clues pages yet, check out the instructions here to learn how they work and how to best utilize them. 

Card 5B.jpg

Hint 1

X marks the spot.

Hint 2

Well, it marks many spots. Don't lose your spot or you may need to recount.

Hint 3

It's a map to another part of the card.

Hint 4

Use the main paragraph.

Solution

Final Solution: If oriented the right way, the white X's mark the letters you want out of the main paragraph. The plaintext reads: " infinitiinstitutes.org "

Card 5C.jpg

Hint 1

Looks like you've got part of a URL to decode here.

Hint 2

Take each word of the first part separately. What are some synonyms for these words?

Hint 3

You can also go backwards to reverse engineer it a bit. What are some synonyms for types of knights?

Solution

Final Solution:
Friend = Pal
Boy = Lad
Noise = Din
All together you have your knight, aka a Paladin.
So you want to add /paladin to your url.

Card 5D.jpg

Hint 1

Oh! Looks like there's more pieces to this URL code.

Hint 2

Hmm... try saying what you see.

Hint 3

Sounds familiar, right? Something high-flying perhaps.

Solution

Final Solution:
Trap + Peas = Trapeze
So you want to add -trapeze to your URL.

Card 5E.jpg

Hint 1

One last piece of URL code, but it might not be able to be "decoded" necessarily.

Hint 2

In fact, it looks like something is missing.

Hint 3

Does that look like most of a familiar series?

Solution

Final Solution:
These are the planets, but with one missing.
You want to add -saturn to your URL.

Card 5A.jpg

Hint 1

What's another word for an eagle?

Hint 2

It's 'Accipitridae.'

Hint 3

Looks like you've got all the same letters in Acidic Pirate.

Solution

All the words here are anagrams. So your plaintext is: "Passwords: Rhinoceros, draconian, kleptomaniac."

Card 5F.jpg

Hint 1

I'm sure there's a message in these stamps.

Hint 2

Perhaps it's directing you to another type of stamp.

Hint 3

This should be the last puzzle you need to solve, so if you have other puzzles waiting, come back to this.

Solution

These three stamps are of a globe, a stamp, and a museum. They are indicating that you need to pay attention to the geography stamps on all the other cards, which are telling you the museum you need to finish the game.
The countries, in order, are Germany, England, Turkey, Thailand, and Yemen. Taking the first letters, you get "Getty," which is the museum you need.