Antonio moved quickly, taking out something resembling a tube of toothpaste from his bag, and started squeezing it into the keyhole of the safe. The semi-liquid substance, which was indeed quite similar to toothpaste, began to harden upon exposure to air. After a few minutes, Antonio carefully extracted what had solidified into a key-like shape.
After pulling out the rough-shaped key, Antonio quickly began refining it. Then, he took out a small battery-operated blow dryer and started blowing on the key.
Gao Yang cautiously asked, "Is that enough?"
Antonio nodded and said in a deep voice, "Just a few minutes to harden is enough. If this lock wasn't so complex, we wouldn't even need this stuff; two steel wires could do the trick. But the lock was never the real issue, the code is what matters most."