The magazine will give away a copy of the BBC Doctor Who audiobook The Resurrection Casket, read by the series' star, David Tennant, in the issue that goes on sale on 22 April. The CD is normally priced £9.99. The covermount also features an interactive drawing game.
Activity will run across websites including AOL, CiTV and Cartoon Network to reach six- to 13-year-olds as part of the supporting campaign through Partners Andrew Aldridge and PHD.
The promotion follows the 5-11 April issue of Radio Times, which was published with four different collectors' covers to celebrate the show's guest stars.
The current series of Doctor Who, the fourth since the show's revival in 2005, began on 5 April.