Automated Summary Sheet

In Excel 2003, I have a workbook with 400+ sheets. Each sheet uses 3 columns, but the number of rows varies from sheet to sheet.

I would like to find the data in the last row of column C of each sheet (the location of this data can vary from cell C10 to C3030), and copy it to a summary sheet. I know this can be done manually with the following type of formula =Sheet2!C10, but I don’t want to repeat this 400+ times.

Is there a way to automate this?

Thanks in advance