Quest for the Secret Keeper

Delphi Keep is awash in activity, and for Ian, Theo, and Carl, their safe haven might be nearing its end. The Royal Navy has taken the keep to use as a hospital and the tunnels running under the keep and the castle are ideal to set up a central communications outpost for the approaching war. The earl is happy to help the effort, but now the keep is no longer safe for the orphans and they must be e...