Alien Who Travels Through Time in a Blue Box
Puzzle 13 of Treasure Hunt Pack
Question is: Alien Who Travels Through Time in a Blue Box
and the answer is: DOCTORWHO
Word Meaning:
DOCTOR — A physician; a member of the medical profession; one who is trained and licensed to heal the sick or injured. The final examination and qualification may award a doctor degree in which case the post-nominal letters are DO, DPM, MD, DMD, or DDS in the US, or MBBS or BDS in the UK.
Definitions from Wiktionary.