Doctor Who: Young Reader Adventures Book 4 - Sightseeing in Space (Dr Who Chapter Books)

The Doctor, Amy, and Rory join an undersea exploration ship on the planet Hos in The Underwater War. When a virus infects the crew, they discover the ship is hiding a dangerous secret! In Terminal of Despair, the TARDIS crew find themselves trapped in a quarantined spaceport where the waiting passengers have lost all hope of ever getting home. Can the Doctor save them?