How do you get spa 3 keycard in moshi monsters but you can't reach?

well, there is that hook at the bottom of the desk that the cow is stood at and you go on in the mission and when you get to the bit when you cut the hair put the hook on the fish and it will give it a sharp end you go outside in to the pool area and get your hook out again and pull out the plug in the swimming pool the card will sink in to the plug hole then pop right back out and that is how.