How do I import (lost) photos to Library after crash?

Question

I am using iPhoto '11 on a Mac OSX Lion 10.7.5.
I imported some photos from my camera, then chose to delete the photos from the camera. A few minutes later, iPhoto crashed-- and lost the photos.
I used right-clicking on the iPhoto app to see Package Contents and found the photos buried in a folder.
How do I safely import them back into iPhoto? (Since they are buried in a hidden folder, the "Import" function probably won't apply.)
Any advice appreciated.

Answer 1

Do not make any changes to the contents of the  library from the Finder.
and lost the photos.
Don't they show in the Last Import smart album?  If they don't show in the Last Import smart album try the following:
1 - launch iPhoto with the Command+Option keys held down to open the First Aid window. Be sure to follow the circled recommendation in the screenshot.
2 - run Option #4, Rebuild Database.
If that fails to recover the photos continue with:
Using iPhoto Library Manager  to Rebuild Your iPhoto Library
1 - download the free version of iPhoto Library Manager and launch.>Click on the Add Library button,
2 -  select the library you want to add from those in the selection window.
3 - make sure that in the rebuild window the checkbox  "Scavange orphaned photos" is checked.
4 - now that the library is listed in the left hand pane of iPLM, click on your library and go to the Library ➙ Rebuild Library menu option
5 - in the next  window name the new library and select the location you want it to be placed. Click on the Create button.
Note 1: This creates a new library based on the LIbraryData.xml file in the library and will recover Events, Albums, keywords, titles and comments. However, books, calendars, cards and slideshows will be lost.
Note 2:  Your current library will be left untouched for further attempts at a fix if so desired.