diff --git a/bintree.c b/bintree.c
index 5f0ffc4..50d6b9b 100644
--- a/bintree.c
+++ b/bintree.c
@@ -55,25 +55,31 @@ void *nextTreeData(TreeNode *root)
 	printf("nextTreeData wurde gecallt!\n");
 	if(root)
 	{
-		addTreeToStack(stackRoot, root);
+		stackRoot = addTreeToStack(stackRoot, root);
 		printf("Baum wurde geladen!\n");
 	}
-	void *buffer = pop(stackRoot);
+	printf("\n\nstackRoot ist: %x\n\n", stackRoot);
+	StackNode *stackPuffer = pop(stackRoot);
+	if(!stackPuffer)
+		printf("Something went horriffically wrong! There is no Data!");
+	void *buffer = (stackPuffer->stackData);
 	printf("neuer Eintrag wurde geholt: %x\n", buffer);
 	return buffer;
 }
 // Adds all Treenode-Datas of a root into a stack ordered from left to right
-void addTreeToStack(StackNode *start, TreeNode *root)
+StackNode *addTreeToStack(StackNode *start, TreeNode *root)
 {
 	if(root->left)
 	{
-		addTreeToStack(start, root->left);
+		start = addTreeToStack(start, root->left);
 	}
-	push(start, root->data);
+	start = push(start, root->data);
+	printf("\na new Dataset has been added! new stackRoot: %x", start);
 	if(root->right)
 	{
-		addTreeToStack(start, root->right);
+		start = addTreeToStack(start, root->right);
 	}
+	return start;
 }
 
 // Releases all memory resources (including data copies).
diff --git a/bintree.h b/bintree.h
index 9ece646..3bc2eb7 100644
--- a/bintree.h
+++ b/bintree.h
@@ -26,5 +26,5 @@ void clearTree(TreeNode *root);
 // Returns the number of entries in the tree given by root.
 unsigned int treeSize(const TreeNode *root);
 // Adds all Treenode-Datas of a root into a stack ordered from left to right
-void addTreeToStack(StackNode *start, TreeNode *root);
+StackNode *addTreeToStack(StackNode *start, TreeNode *root);
 #endif
\ No newline at end of file
diff --git a/highscores.txt b/highscores.txt
index e69de29..67c6bd3 100644
--- a/highscores.txt
+++ b/highscores.txt
@@ -0,0 +1,10 @@
+Ottp;4522070
+Ottp;4522070
+Ottp;4522070
+Ottp;4522070
+Ottp;4522070
+Ottp;4522070
+Ottp;4522070
+Ottp;4522070
+Ottp;4522070
+Ottp;4522070
diff --git a/stack.c b/stack.c
index 61c4c01..831770a 100644
--- a/stack.c
+++ b/stack.c
@@ -1,4 +1,5 @@
 #include <stdlib.h>
+#include <stdio.h>
 #include "stack.h"
 
 //TODO: grundlegende Stackfunktionen implementieren:
@@ -33,14 +34,18 @@ StackNode *push(StackNode *stack, void *data)
 // freed by caller.)
 StackNode *pop(StackNode *stack)
 {
+	printf("A stack is being popped");
     if(stack) {
         StackNode* temp = stack;
         stack = stack->below;
         temp->stackData = NULL;
-        free(temp);
-        temp = NULL;
+        //free(temp);
+        //temp = NULL;
+		printf("Stack returns stack at: %x\n", stack);
         return stack;
-    } else {
+    } 
+	else 
+	{
         return NULL;
     }
 }