Haeleon

Haeleon is a planet whose surface is described as shimmering and mirror-like; no sector, system, or coordinates are recorded for it.

During Abaddon the Despoiler’s Thirteenth Black Crusade, at the close of the 41st millennium, Khârn the Betrayer and his Khorne Berzerkers defeated a White Scars force on Haeleon and pursued its retreating khan across the planet, whose conditions posed dangers of their own. Captain Talomar Locq and the Hounds of Abaddon, sent by Abaddon to find Khârn, arrived after he had gone.