Final answer:
In chapter 14 of 'The Princess and the Goblin,' a goblin most likely jumped into Irene's room from the window.
Step-by-step explanation:
In chapter 14 of 'The Princess and the Goblin,' it is most likely that a goblin jumped into Irene's room from the window. This is indicated by the mention of assassins entering the room, which are typically associated with goblins in the story. The excerpt also describes the chaos that follows, with the disappearance of the room and the appearance of high mountains.