So, Eldritch Secret allows a witchwarper to add a specific mystic or technomancer spell to their list of witchwarper spells known as per its rules:
Eldritch Secret wrote:
Select one spell from the mystic or technomancer spell list. It must be of a level no greater than 1 lower than the highest-level spell you can cast. Add this to your list of witchwarper spells known.
In addition, the Adaptive Casting feat allows a caster to choose spells from a class spell list that they can cast spells from, and gain some as spell-likes.
Adaptive Casting wrote:
Select three spells from class spell lists you can cast spells from. They must be at least 1 level lower than the highest spell level you can cast. Once per day, you can cast one of these spells as a spell-like ability. Each time you gain a caster level, you can change which three spells you have selected with this feat.
My question is, could this allow a witchwarper to learn mystic spells as spell-likes gained via Adaptive Casting? For example, if a witchwarper uses Eldritch Secret to learn Mind Thrust (the Mystic spell), can they then use Adaptive Casting to select other Mystic spells for use as spell-likes?
TLDR; Does Eldritch Secret allow a witchwarper to use Adaptive Casting to gain mystic spells as spell-likes?