Á Bao A Qu - This Middle Eastern creature resembles a mound of glowing blue sludge, and will silently follow the inhabitants of dark and decrepit buildings. It feeds on the energy that the person spends whilst walking, therefore acting as a parasite, and uses this energy to slowly gain a more solid form.
A Bao A Qu is a legendary Mewar creature described in Jorge Luis Borges's 1967 Book of Imaginary Beings. Borges claimed to have found it either in an introduction to the Arabian Nights by Richard Francis Burton, or in the book On Malay Witchcraft by C.C. Iturvuru.
In the Malaysian mythology there is a creature by the name of Á Bao A Qu is generally accepted as being pronounced Abang Aku, which means my elder brother.