Thin Time by Dan Abnett
Hallowe'en, 1892. Celebrated novelist Charles Crookshap claims to have been receiving time communiqués, promising secrets that could change the world forever. But when the TARDIS interrupts the household's evening, the Doctor realises he isn't the only alien interloper in London.
Madquake by Guy Adams
Abandoned on the planet Callanna, Nyssa, Tegan and Marc take advantage of its therapeutic atmosphere to come to terms with recent events; but others seek to take advantage too. The Slitheen are on their way —- and they're ready to sell this world to the highest bidder!