The runes you need to click are shown in the journal:
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thumb|right|225px|Known rune letters. Although it is not necessary to get to the required location you should by now know all but one rune letter on the flyer. Comparing the letters the message on the flyer says “Ad au_ust per an_usta”.
Then, through a little qualified guesswork and search for Latin phrases it should be fairly easy to find out that the missing letter is G. The phrase is then “Ad august per angusta”, a slight misspelling of the phrase “ad augusta per angust”, which means something like “to honours through difficulties”.
In the end you should have knowledge of the following rune letters
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Either way, the end result and the runes you need to click are as follows:
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