Looking for Bear

Ben and Cassie have just moved into a new home, but its not quite what they expected as they have to share a room until the builders have finished doing it up. And Dad is very busy too. Theres a lot more on his plate now Mum doesnt live with them. But thats OK. Ben and Cassie can make their own fun. Are the builders really pirates? Just working on the house while they wait for the tides to change? and is there really a bear living in the garden? Maybe they could catch him...