Looking through multiple worksheets:

I multiple worksheets (at least . Each worksheets has the same data and
different data.

Example:
(Sheet 1)

    A               B              C
1   Car             1              49
2   Truck                          54
3   Bear           6               5
4   Ralph          9              4

(Sheet 2)
   
    A              B             C
1  Car             2              5
2  Truck         55             4
3  Train          42             5
4   Ralph          3             8

I need to copy information into the new summary sheet from Column A. But, I
can't have duplicates. Something like If in A of all worksheets then copy
into summary A and If duplicate don't copy.

I then need to transfer the row data.

If data in column A of worksheets matches Column A of summary worksheet then
what is the sum of the information that matches in that row and column and
placed in the matching row and column of the summary worksheet.

So this (detail):

(Sheet 1)

    A               B              C
1   Car             1              49
2   Truck                          54
3   Bear           6               5
4   Ralph          9              4

(Sheet 2)
   
    A              B             C
1  Car             2              5
2  Truck         55             4
3  Train          42             5
4   Ralph          3             8

Should look like this (summary):

     A                B               C
1   Car               3             54
2   Truck          55             58
3   Train           42             5
4   Ralph          12             12
5   Bear             6              5