Who found the dead kitten into the ground? What was the name of the dog in the chapter "the ashes that made trees bloom"?

Dear Student,

​​​​​​The wicked couple hoped to become rich like the generous old couple. In their efforts to locate the treasure, they dug at a place where the dog was scratching. However, instead of treasure, they found a dead kitten. 

The name of the pet dog of the old couple was Muko.  

Regards,