Think Indiana Jones also Stargate SG 1 and National Treasure all three ideas behind these shows are needed even with all seven keys. The ward locks as Monroe calls them.
The treasure is old so the traps set will be old Wu will figure out the puzzles think National Treasure, Indiana Jones clues now think Stargate SG 1 you need the Grimm gene to use the keys.
They get the keys but the royals catch up and get the keys back, but Nick and crew have the map also. They get to the site and find several dead hundjager and the keys. Now Wu set about figuring out the puzzle on how to use the keys. Monroe tries at the first and is almost killed so Nick tries the next time an it works. Now Wu has to work out the second and so on puzzle.
The treasure is old so the traps set will be old Wu will figure out the puzzles think National Treasure, Indiana Jones clues now think Stargate SG 1 you need the Grimm gene to use the keys.
They get the keys but the royals catch up and get the keys back, but Nick and crew have the map also. They get to the site and find several dead hundjager and the keys. Now Wu set about figuring out the puzzle on how to use the keys. Monroe tries at the first and is almost killed so Nick tries the next time an it works. Now Wu has to work out the second and so on puzzle.