'The Lost Prince ' Summary

Stefan, realizing that two boys are less likely to be noticed, entrusts them with a secret mission to travel across Europe giving the secret sign: 'The Lamp is lighted.' Marco is to go as the Bearer of the Sign while The Rat goes as his Aide-de-Camp (so-named at his own request). The boys encounter many dangers while on this journey.

This brings about a revolution which succeeds in overthrowing the old regime and re-establishing the rightful king. When Marco and The Rat return to London, Stefan has already left for Samavia. They wait there with his father's faithful bodyguard, Lazarus, until Stefan calls. The book ends in a climactic scene as Marco realizes his father is the descendant of Ivor Fedorovitch and thus the rightful king of Samavia