Artemis Fowl and the Time Paradox by Eoin Colfer

Two Artemis's, two Butlers, two Holly's, all converging on one time - to try to beat Opal before she can stop a cure for Mrs Fowl being found. Great fun - if you've liked the others you'll love the fast pace and the humour here.
http://www.artemisfowl.com/

Ways to Live Forever by Sally Nicholls

This scrapbook as from an 11 year old boy who is dying of cancer will make you laugh and cry, it will touch your heart and it will stay with you for a very long time. Read it.
http://www.waystoliveforever.co.uk/

Ostrich Boys by Keith Gray

Three friends -Kenny, Sim and Blake are about to embark on a strange, ill fated journey. They steal the urn that contains the ashes of their best friend Ross, and they set out to travel from Cleethorpes on the English east coast to the tiny hamlet of Ross in southern Scotland. After a depressing and dispriting funeral they feel that taking Ross to Ross will be a fitting memorial for a fifteen-year-old boy who changed all their lives through his friendship. Little do they realise just how much Ross can still affect life for them even though he's dead.

Keith Gray has written a different take on the usual quest novel - as they travel the boys discover much about themselves, but also more about the friend they thought they knew and loved. Their complete disbelief at the idea that Ross may have committed suicide, and their slow realisation that they may have let down their friend is realistically told. The misadventures they have are all credible, and written with a lot of black humour - a book well worth the read and will strike a chord with many teenagers.

Starcross by Philip Reeve

Follows on from Larklight - but can be read perfectly well by itself. The idea of the Victorians in space and the adventures that the family get up to are totally believable and thoroughly involving. The wicked moob try to take over the world from a resort hotel near Mars - a real space based ripping yarn, wonderfully told. Enjoy! More info here -
http://www.bloomsbury.com/childrens/microsite.asp?id=1177&section=3&mscssid=ADF9B3VP7LX08KR9BC8Q62MFB0GT09XF

Just Henry by Michelle Magorian

I was lucky enough to go to the launch of this book - in a delightful small cinema in Rupert Street. A totally appropriate setting to hear Michelle read from her new book. Henry is a child growing up in post war Britain, and learning to live with his new step father (his father appears to have died a hero in the war). He has to learn to find his way in a world full of prejudices, and to escape from facing up to his world he attends the cinema as often as he can. The cinema history portrayed is authentic, and the feel of the times totally believable. Henry gradually begins to think for himself, and to deal with the world he lives in. This is a truly delightful story of friendship and growing up. Read it - if you liked Goodnight Mr Tom you'll love this.

Cosmic by Frank Cotterell Boyce

This is the usual madcap and delightful mix we have come to expect from Boyce. Liam is a normal boy, but very tall, and as such is regularly taken for a grown up - and so he ends up masquerading as his friends father - and via a series of adventures and misfortunes they end up on the greatest adventure imaginable - in space!

There are some elements when you need to suspend your disbelief but the sheer pace and plot means you are carried along happily.