Written by Tony Lee. Art by Al Davison and Blair Shedd. Cover artist: Paul Grist. When a fifth-dimensional spacecraft crashes into-and through-the Tardis, it's up to the Doctor and his two new friends to stop both ships from imploding! Also, the Doctor joins Martha Jones and UNIT in facing an army of angry living trees in Greenwich Park! The ongoing tales of Doctor Who continue as master storyteller Tony Lee puts the Doctor and fellow travelers, Emily and Matthew, in one unpleasant situation after another! This volume collects issues #7-12 of the series comprising of the two-part “Tesseract” and the four-part “Don’t Step on the Grass.”