Astracane leech
From Tardis Wiki, the free Doctor Who reference
Astracane Leeches were dangerous creatures. Jack Harkness and Ianto Jones once stopped an attack of Astracane leeches when they attacked a kid's party and were allowed to play on the bouncy castle in return. Ianto later reminded Jack of the event when he was infected with the Kagawa Virus. (TWN: Virus)
