Cirrus@Austlit

'′It had been four years since the triplets had seen their parents -- and for most of that time, they′d thought their parents were dead...′

Alistair, Alice and Alex have returned home safe from their adventures, but now that they know their homeland, Gerander, is in danger they can′t sit by and do nothing. Together with their friend Tibby Rose, they join FIG -- an organisation working to free Gerander from the rule of greedy Queen Eugenia of Souris.

Posing as orphans, Alex and Alice are sent on a risky undercover mission to the capital of Gerander in a desperate attempt to learn the Sourians′ plans -- only to encounter some old enemies . . . and some new ones.

Meanwhile, Alistair and Tibby Rose set out to find Gerander′s secret paths and rescue Alistair′s parents from an enemy prison. But someone is determined to stop them -- someone who seems to know their every move. Is it possible FIG has a traitor?' (Publisher's blurb)