Writing Hooks

I've started a short story unit with my grade 9 English classes and am starting with the first line of a story: the hook.
As a class we've gone to the library and browsed through many books finding first lines we like and dislike. We've discussed our lines with each other and come up personal definitions of what makes a good hook. We've looked at different types of hooks and have now tried our hand at writing our own.
Our hooks are based on this idea for a story: You've inherited a mysterious object from a relative you didn't even know you had. Each of us wrote 5 hooks and chose 1 that we thought was our best. I've compiled each class' best hooks into the following forms.
We would appreciate if you could take a few minutes and give us feedback on our writing.

Class 1


Class 2


Class 3