Surely a peaceful holiday in the Welsh mountains will keep the children out of trouble! But the mystery of a rumbling mountain soon has them thirsty for more adventure. Philip, Dinah, Lucy-Ann, Jack and Kiki the parrot are determined to explore the mountain and uncover its secret, but first they must escape from a pack of ravenous wolves and a mad genius who plans to rule the world! Discover more titles in the wonderous Adventure series with The Island of Adventure, The Castle of Adventure, The Valley of Adventure, The Sea of Adventure, The Ship of Adventure, The Circus of Adventure and The River of Adventure.
