Tag Team.

Shi Lang alerted Amelia slowly as he sensed a gaze focused on his back. The youngster did not panic, he was aware that this would happen. Earlier when he faced off with the beast, there was a moment when the beast froze as Shi Lang entered the battlefield. 

It may seem that the beast was afraid of something, but Shi Lang would never forget the look a beast had when they are given their favorite food. The blue bird was a temptation the beast could not avoid. Shi Lang had caught this minute detail and he understood how the natives caught lured this beast to them. 

Amelia was a trained soldier and she was ready to act at a moment's notice. She acted quickly and used her ability to turn invisible. Shi Lang on the other hand slowly stood up. He did this to prevent his movements from triggering the assault from the beast. Quick movements can attract a reflex action from the beast.