Bestselling author Anthony Horowitz is the UK's most popular male children's author.

Known worldwide as the creator of Alex Rider, the reluctant teenage superspy, in 2007, Anthony was singled out by former Education Secretary Alan Johnson as the not-so-secret weapon to get boys reading. He will be signing copies of Necropolis, the latest book in his spooky Power of Five series at Borders York on October 30 at 2pm and Borders Leeds on November 1 at 11am. Tickets are now available from both stores. For details call the York store on 01904 653300 and Leeds on 0113 242 4400.We are offering 10 lucky readers the chance to win first place in the queue at either of these events along with the opportunity to ask Anthony lots of questions. Winners will also receive a signed copy of Necropolis.

For your chance to win, simply answer the question below. Text YPNECROPOLIS (then leave a space) with answer, your name, house number and postcode (max 160 characters) to 81800. Texts cost £1 plus normal network rates. Or send your answer, name, address, postcode and contact number to ypcompetition@ypn.co.uk with the word NECROPOLIS in the subject. Entries must be received by midnight October 27, 2008. Usual YPN rules apply.

Q. What is the name of Anthony Horowitz's latest book?

To find out how we may use your contact details, please refer to the data protection information in the public notices section of today's newspaper. The prize will be awarded to the first 10 correct entries chosen at random after the closing date. The closing date is midnight October 27, 2008.