The Ring of Five
by Eoin McNamee

3 out of 5 stars

Danny ends up at Wilsons Academy, a school for spies in another Lower World. They work to stop an army of Cherbs from invading the Upper World of humans. Danny makes friends among the spy cadets of the academy. Les is a thief with wings. Dixie can teleport anywhere she can see her way through. And Vandra has special healing powers. Together they learn all the skills they need to spy on the evil Ring of Five who control the Cherb army, but the most essential skill for any spy is the art of betrayal.