Soon they were in school, and Roxanne, Hugo and Lily were in a deep dicsussion. They were puzzled. Suddenly, something cold grabbed Hugo by his arms. Roxanne and Lily grabbed him and they vanished. Yes, into fin air! They were now in a room. Full of dark and probably spiders were lurking around every corner. There was only one poster. It said:

Solve this riddle:

what is heavy but light, powerfull yet not?

Roxanne said happily "I have been studieng this code! Let me translate! It says:

Solve this riddle:

What is heavy but light, powerfull yet not?

Hugo said, "I know! It's magic!"

Then something said "You are right. Now duel me"