From publisher blurb:
Protect, Nurture & Ascend
Perhaps you were a student of magic, or maybe just an explorer. Whatever you once were, your entire life has changed since you have discovered this great creature.
Unlike most warlocks who are granted their power by making a pact with a extraplanar entity. You are bestowed your power by your selfless protection and nurturing of a young patron. Gaining power as the patron does, your relationship is that of caring and friendship, of course with the highs-and-lows of rearing a young, but very powerful creature.
Inspired by the Baby Bestiary, this supplement will provide you with two versions of the Caretaker Warlock, the first set, the Guardian, being a simple subclass tweak, and the second second (coming soon), the Caretaker Warlock, being a complete Warlock class rework.