The Adventurous Four

When Tom, Jill and Mary go to stay at a little fishing village in Scotland, the local fisherman's lad, Andy, promises to take them out in his boat. But a storm takes them off course and they end up shipwrecked on a small group of islands! Worse, it seems the islands are being used as a secret submarine base by the enemy...

The Ragamuffin Mystery

Three weeks at the beautiful Merlin's Cove in Wales sounds like great fun to four friends, but someone else has got much more sinister plans for the beach—at night. Could it be the strange man Snubby meets on the first day, or is it to do with the ragamuffin he mistakes Snubby for?

The Rat-A-Tat Mystery

A cosy house surrounded by snow-covered hills seems a perfect place to spend the Christmas holidays, but the peace is disturbed by unexplained noises. What is it that Snubby can hear coming from the cellar? He goes to investigate and mysteriously vanishes!

The Rubadub Mystery

When Miss Pepper takes Roger, Diana, Snubby and Barney to stay at the village inn in Rubadub they discover that all sorts of strange things are going on, and there are mysterious explosions at the secret submarine base nearby. The children are determined to find out what is going on.

The Ring O'Bells Mystery

When Roger, Diana, Snubby and Barney go on holiday to Ring O' Bells village, they are eager to explore the secret passage in Ring O' Bells Hall. Is it really a dead end as they have been told, or does it follow the route marked on the old map they find?