Anyamal Tantei Kiruminzoo episode 42

It aired on Monday, 26 July 2010.

Protect your banana! Mysterious intruder monkey?

During a Kirumin meeting, the walls of the attic suddenly start to move! While watching a video of Dr. Yuki they found in the new space, they hear someone's voice coming from a house that should be empty. Could it be a thief? Riko and her friends immediately try to catch the mysterious intruder, but... But will Riko and her friends be able to protect the house...?