Doctor Who: The Companion Chronicles: Beyond the Ultimate Adventure

The Doctor, Crystal and Jason have survived monsters, Madame Delilah and Mrs T, but then their former enemy Karl calls them back to the Bar Galactica. The mercenary has a cryptic message concerning Ultima Thule, where fabled treasure and a threat to the universe await...

The journey requires entering another dimension, where old enemies – and a brand new adversary – lie in wait...