There's a new resident in Castle Key - and somebody is watching him! Scott, Jack, Emily and Drift soon suspect that the new resident is an enemy spy.  (+)

A game of hide and seek in the old Castle Key lighthouse during a violent thunder storm leads to an amazing discovery - a tattered old treasure map!  (+)

When thieves raid the house of a neighbour, Emily, Jack and Scott are ready to investigate. But, strangely, the neighbour doesn't seem to want the thieves  (+)

The circus comes to town, full of conjurors, clowns, tightrope walkers and trapeze artists. But dark secrets lurk beneath the sawdust and spangles -  (+)