Germinomas include the malignant germ cell tumours of childhood that are usually found in the ovaries (dysgerminoma), in the pineal region, and in the mediastinum. [1] In females, dysgerminoma is the most common malignant germ cell tumour of the ovary and represents only 2% of all ovarian cancers. [1] This diagnosis is even more uncommon in the pediatric age group with incidence of 1/80000. [2] Elevation of serum lactate-dehydrogenase (LDH), cancer-antigen-125 (CA-125), beta-subunit-human-chorionic-gonadotrophin (B-hCG), S-100-protein, neurone-specific-enolase (NSE), and placental-alkaline-phosphatase (PALP) are the frequent findings in patients with germinomas. [1] We present a pediatric patient with an ovarian dysgerminoma who have a unique finding of normal serum tumour markers levels, and a very odd presentation of precocious puberty.