What is "lungbarrow"

Lungbarrow is an original novel written by Marc Platt and based on the long-running British science fiction television series Doctor Who. Published in Virgin Books' New Adventures range, it was the last of that range to feature the Seventh Doctor.

When all stories of any media under any banner are listed chronologically, this is the last which features the Seventh Doctor as the "current" Doctor, although Paul McGann's Eighth Doctor had already made his televised appearance by the time the novel was published.