diff --git a/Src/Newtonsoft.Json.Tests/JavaScriptConvertTest.cs b/Src/Newtonsoft.Json.Tests/JavaScriptConvertTest.cs
index c55af74b..44074958 100644
--- a/Src/Newtonsoft.Json.Tests/JavaScriptConvertTest.cs
+++ b/Src/Newtonsoft.Json.Tests/JavaScriptConvertTest.cs
@@ -173,5 +173,38 @@ now brown cow?", '"', true);
       value = 'c';
       Assert.AreEqual(@"""c""", JavaScriptConvert.ToString(value));
     }
+
+    [Test]
+    [ExpectedException(typeof(JsonReaderException), ExpectedMessage = "After parsing a value an unexpected character was encoutered: t")]
+    public void TestInvalidStrings()
+    {
+      string orig = @"this is a string ""that has quotes"" ";
+
+      string serialized = JavaScriptConvert.SerializeObject(orig);
+
+      // *** Make string invalid by stripping \" \"
+      serialized = serialized.Replace(@"\""", "\"");
+
+      string result = JavaScriptConvert.DeserializeObject<string>(serialized);
+    }
+
+    [Test]
+    public void DeserializeValueObjects()
+    {
+      int i = JavaScriptConvert.DeserializeObject<int>("1");
+      Assert.AreEqual(1, i);
+
+      DateTimeOffset d = JavaScriptConvert.DeserializeObject<DateTimeOffset>(@"""\/Date(-59011455539000+0000)\/""");
+      Assert.AreEqual(new DateTimeOffset(new DateTime(100, 1, 1, 1, 1, 1, DateTimeKind.Utc)), d);
+
+      bool b = JavaScriptConvert.DeserializeObject<bool>("true");
+      Assert.AreEqual(true, b);
+
+      object n = JavaScriptConvert.DeserializeObject<object>("null");
+      Assert.AreEqual(null, n);
+
+      object u = JavaScriptConvert.DeserializeObject<object>("undefined");
+      Assert.AreEqual(null, u);
+    }
   }
 }
\ No newline at end of file
diff --git a/Src/Newtonsoft.Json/JavaScriptConvert.cs b/Src/Newtonsoft.Json/JavaScriptConvert.cs
index 6c54dd0f..c5e384c6 100644
--- a/Src/Newtonsoft.Json/JavaScriptConvert.cs
+++ b/Src/Newtonsoft.Json/JavaScriptConvert.cs
@@ -546,6 +546,9 @@ namespace Newtonsoft.Json
       using (JsonReader jsonReader = new JsonTextReader(sr))
       {
         deserializedValue = jsonSerializer.Deserialize(jsonReader, type);
+
+        if (jsonReader.Read())
+          throw new JsonSerializationException("Additional text found in JSON string after finishing deserializing object.");
       }
 
       return deserializedValue;
diff --git a/Src/Newtonsoft.Json/JsonTextReader.cs b/Src/Newtonsoft.Json/JsonTextReader.cs
index 5e6bf23b..60617060 100644
--- a/Src/Newtonsoft.Json/JsonTextReader.cs
+++ b/Src/Newtonsoft.Json/JsonTextReader.cs
@@ -592,6 +592,10 @@ namespace Newtonsoft.Json
 
       } while (!end && MoveNext());
 
+      // hit the end of the reader before the number ended. clear the last number value
+      if (!end)
+        ClearCurrentChar();
+
       string number = _buffer.ToString();
       object numberValue;
       JsonToken numberType;
@@ -678,9 +682,17 @@ namespace Newtonsoft.Json
       bool match = MatchValue(value);
 
       if (!noTrailingNonSeperatorCharacters)
+      {
         return match;
+      }
       else
-        return (match && (!MoveNext() || CurrentIsSeperator()));
+      {
+        bool matchAndNoTrainingNonSeperatorCharacters = (match && (!MoveNext() || CurrentIsSeperator()));
+        if (!CurrentIsSeperator())
+          ClearCurrentChar();
+
+        return matchAndNoTrainingNonSeperatorCharacters;
+      }
     }
 
     private bool CurrentIsSeperator()