After 18 years as a friar, Peter is no longer sure of his vocation. It is a happy life, maybe too much so, and now he has met Clare. Will his doubts run away with him? Runaway friars are officially "fugitives" who must be persuaded back to their order. Author Sean Walsh fled the Franciscan order to become first a journalist, then a playwright and is now a radio drama producer in Ireland.

Investigating mysterious power failures and a death at an underground research centre, The Doctor discovers a colony of Silurians - prehistoric, intelligent reptiles who went into hibernation before man evolved. But now they have woken up, and they are prepared to wipe out mankind with a killer plague to get their planet back.