Someone\'s left some really disgusting garbage in Todd\'s treehouse.
Smiley.
Merlin\'s police scientist friend, Dr.
It\'s another case for Mr.
Someone\'s been in his tree house and left a Pretty yucky clue.
But the mystery turns out to be in Todd\'s own backyard.
Merlin, is sure to have secret codes for the class to figure out and a new mystery for them to solve.
His teacher, the ex-spy Mr.
How can they find out who the culprit is? WHO\'S BEEN HANGING OUT IN TODD\'S TREE HOUSE? Todd\'s ears are so clogged up he can\'t hear, but he doesn\'t want to miss school.
Someone\'s left some really disgusting garbage in Todd\'s treehouse