Need Help!!!

[Hook1123]

After taking out the main Guard in the Bitanical Gardens One of the good Guards said I need to find a "hidden door" Where is this "hidden door"??


Thanks!!!

[Batsy4life]

Dude, this is what makes the game soo much fun. Think like batman would, search everywhere. Check vents, floor grates, ceiling vents. You are the worlds greatest detective.

[Hook1123]

Can anyone help please!

[door noob]

Follow Harley's prints.

Hint, they finish at a certain spot in where you've rescued the two hostages in the cage.