Logic Masters Deutschland e.V.

Happy Halloween!

Please do also check out my other Halloween puzzle.

If you like these puzzles with modifier cells, you might also like these:
The Digits Are Paid Actors
Schrödinger Whispers

Rules:
Normal sudoku rules apply.

There are nine vampires and nine prey cells in the grid, one of each in every row, column and box. Every digit from 1-9 appears exactly once in a vampire and once in a prey cell. Vampires steal the value of the prey cell in their box, making the value of the vampire cell the sum of the vampire digit and the prey digit, and the value of the prey cell 0.

The values in cages sum up to the small number in the top-left corner of the cage. Digits do not repeat within a cage, but values may.

Solve here.