A Long-Awaited Return in Mouse Guard Owlhen Caregiver #1 [Preview] Posted on This week, David Petersen returns to his award-winning Mouse Guard with a new special: Mouse Guard Owlhen Caregiver #1, from explosive publisher BOOM! Studios. The comic features three stories, and we've got a preview below. Look for it in stores on Wednesday. MOUSE GUARD OWLHEN CAREGIVER #1 BOOM! STUDIOS Which of life's biggest lessons can be learned from the smallest amongst us? A young mouse learns that compassion and kindness are the great virtues in "The Owlhen Caregiver." "Piper the Listener" finds a brave mouse venturing into wild country to learn the tongues of other beasts. And a grizzled oldfur shares the lesson of putting a whisker out too far in "The Wild Wolf."