Alex Cardoso is hiding. He often gets in trouble. He hides when he gets in trouble. He hides himself so his parents can't yell at him. In fact, he is not a bad boy, but his parents are very strict. He has to do four hours of homework everyday, and if he does not do it they yell at him.
So he often hides their red pens so they cannot check his homework. They have to spend time looking for the pens, and then Alex hides. In fact, it is sort of fun for him. He hides in many creative ways and it is a skill for him.