No: HPFGUIDX 130651 I was just re reading the third book and I was thinking how it shows all of Hogwarts. After Harry and Hermione use the time turner and are just sitting and waiting to rescue Black. Woudn't the Marader's Map show them on the map. If the invisibility cloak can be detected so can time travel. both Lupin and Snape saw the map. Flyimgmonkeypurple