But an accident at the Thames Barrier, combined with a tidal surge and a dramatic thunderstorm - and suddenly his trip turns into something totally different as the Barrier is breached and London is flooded.  Meer

Ben Tracey is looking forward to spending the summer in the Democratic Republic of Congo, where his father has been hired. They soon realise that the people living in the village near the mine are frightened and discover that behind the door of every hut there is at least one person dying or seriously ill.  Meer

When Ben Tracey sets out with his cousin to spot hen harriers - a protected bird of prey - he doesn't expect to stumble upon a secret operation.  Meer

Ben Tracey is on holiday in the Cayman Islands when a hurricane warning means he and his new friend, the son of an oil billionaire, must fly out of range.  Meer

Ben and his Pakistani host, Aaarya, find themselves in the wrong place at the wrong time. Caught up in a terrifying planned terrorist attack that could destroy Southern Afghanistan, killing thousands, Ben and Aarya are dragged through the most terrifying battleground in the world.  Meer

As world leaders gather and a student demo gathers pace, a small flame takes hold - and suddenly an unquenchable fire bursts into life and an inferno of flames up to l00 metres high tear through the streets, threatening homes and lives.  Meer