Answer:
The author instills shock and confusion into this passage by adding moments of uncertainty, such as "Pan sat up and blinked". This can influence the reader to wonder what happened to shock Pan. To reinforce these elements, the author quickly jumps into the scene, writing "...Lyra, who cried out in horror: that was blood gushing out of him!" The fast unfolding of the events may startle and and bewilder the reader.