From publisher blurb: Adding over 50 psionic powers for the Ultimate Psionic rules and classes, the final release of the Book of Beyond series is here: Book of Beyond - Psionic Paths! Psionic Paths was designed and written to expand both the scope and potential Origins of psionic power. Planar energies come forward as this supplement opens secrets of the Trasitive Planes - Astral, Ethereal and Shadow - as the ultimate Sources of mental energy. Freeze spells in place with astral quintessence! Infect enemies with the Shadow Plane's quasi-reality! Weaponize enemy summoned creatures! Gain access to the Source Origin system allowing whole new dimensions of power interaction!