A Gleeb for Earth

A hotel proprietor writes to an editor after two lodgers vanish, leaving only neatly arranged clothing and a mirror frame, plus a stack of letters with foreign postmarks. The letters come from an invading consciousness in a parallel not-world that enters human life via a mirror gateway, explaining its painful birth inside a human infant, rapid growth, and plans to assume and exploit human identities. The tale unfolds through the proprietor's report and the invader's epistolary confessions, presenting a gradual, uncanny invasion that probes anxiety about bodily absence, hidden occupation, and the erosion of personal identity.