Go to West Sarutabaruta (S) and examine the Sealed Entrances to the stone towers at (F-4), (J-8), and (F-11).
Go back and speak to Miah Riyuh to complete the quest.
You will only get Sprinter's Shoes if you have not already obtained them from another nation.
If you have already signed up with another nation, you must complete this quest to switch allegiance to Windurst. You do not require an invitation from the NPC in Crawler's Nest.
When putting the putty on the cracks, make sure there are no monsters around you, as they will aggro if your level is low.
If you wish to change back to your original nation, instead of trying to recomplete this quest, talk to Mhoti Pyiahrs.
If you activate The Fighting Fourth or Steamed Rams prior to completing this quest, but after activating it, you may encounter a glitch which will not allow you to finish this quest. Simply finish the other quest(s), then speak with Miah Riyuh.