diff --git a/caesar_cracker.py b/caesar_cracker.py
new file mode 100644
index 0000000..471ee8c
--- /dev/null
+++ b/caesar_cracker.py
@@ -0,0 +1,13 @@
+from collections import Counter
+
+def crack_caesar(ciphertext):
+
+    counts = Counter(ciphertext.upper())
+
+    most_common_letter = counts.most_common(1)[0][0]
+
+    alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+
+    shift = (alphabet.index(most_common_letter) - alphabet.index("E")) % 26
+
+    return shift
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