What is a type of figurative language do they use in The Lightning Thief?

The use three types foreshadow, simile, and allusion.

1) pg 7, paragraph 4 " 'What you learn from me' he said, ' is vitally important. I expect you to treat it as such ... " - Foreshadow

2) pg 166, paragraph 3 " ... but i swung Riptide and she broke open like a pinata." - Simile

3) pg 8, paragraph 3 "The class gathered on the front steps of the museum, where we could watch the foot traffic along Fifth Avenue." - Allusion