A snapping crocodile that uses the ultrasonic sensor.

The most reliable source is the LEGO Customer Service website. Search for set number 8547 .

Building from a screen is slightly different than using a physical book. Here is how to make it easier:

LEGO provides digital versions of their manuals to ensure builders can access them even if the original paper booklet is lost or damaged.

You can input your set number (8547) to see a list of alternative builds created by fans, many of which offer high-quality PDF downloads.