Where is Christopher Booker?

The electronic edition of the Sunday Telegraph has no column from Christopher Booker and the paper's search engine brings up no results in this week's edition when entering his name. Is this just a holiday break or has the mainstream UK print media lost its one regular dedicated anti-EU commentary? If anyone can throw light on this perhaps they could use the comment facility on this posting to provide details. Some strong protests to the new editor of the paper might be advisable if his absence is anything other than temporary!