Harry's friends' gifts each reflect their personality and foreshadow a later event in the story. Hagrid sends a biting monster book. Hagrid loves monsters dearly, and in this novel, his loyalty to one monster in particular constitutes a great part of the plot. Ron sends a sneakoscope and a picture of his family in Egypt; the same picture inspired Black to leave prison, and the sneakoscope will alert Harry and his friends when they were being overheard. Hermione sends a broomstick-servicing kit. This gift acknowledges Harry's deep devotion to his broomstick-sport, Quidditch; her thoughtfulness with this gift foreruns her later concern that his new broom was sent by Black.