How do you get to the beast in gleeba in dragon quest

Speak to all the people in Mirage Mahal and you should find some clues as to where the queen's lizard is hiding. You should find that he likes shade and a clap will bring him out of his hiding place. Go outside to the entrance of Mirage Mahal but don't go inside, go west round the side and into the shade and you should see a tree. Go up to the tree and do the party trick clap and a small lizard will come out. Press b to catch him!