Interventions › Sibling Theraplay® x5 Sessions (Child Intervention Based on Theraplay® Principles) Image 1 of 1 Sibling Theraplay® x5 Sessions (Child Intervention Based on Theraplay® Principles) £450.00 This is a booking for 5 sessions of Sibling Therapy.Once you have paid for the bookings, we will contact you to arrange a suitable date and time to attend. Quantity: Book Now Added! This is a booking for 5 sessions of Sibling Therapy.Once you have paid for the bookings, we will contact you to arrange a suitable date and time to attend.